BP Ultimate means engine quicker warm-up?

[lh59]

I filled up my 1.3 auto Yaris yesterday with BP Ultimate. This is the first time I'm using premium fuel since petrol price has gone down a bit and I just want to try it for fun. This morning, I noticed that my cool engine light went off about 30% quicker than it normally took when I use regular unleaded. Not sure whether this is due to the premium fuel. Have anyone experienced this as well? I didn't notice any difference in the power though. Might be because I rarely rev my engine beyond 2500rpm. Will keep a close look at the cool engine light tomorrow again to double check.:smile:

[Snyprwlf47]

Yeah I run premium and it seems a little faster to heat up now ,probably since premium burns hotter. I have noticed not so much a power increase but an increase in the smoothness of the motor it purrs nicer^-^

[jambo101]

If you are going to throw your money away just for fun you may as well read how useless higher octane fuel is for the motor not designed for it.
http://www.baileycar.com/gasoline_html.html

Guess it was the word ULTIMATE that got you:biggrin:The guys at BP are laughing all the way to the bank.

[ROCKLAND TOYOTA]

this subject has been beaten to death too many times to count. if a person wants to put premium fuel in his tank and you don't agree just keep it to yourself........

[lh59]

I filled up my 1.3 auto Yaris yesterday with BP Ultimate. This is the first time I'm using premium fuel since petrol price has gone down a bit and I just want to try it for fun. This morning, I noticed that my cool engine light went off about 30% quicker than it normally took when I use regular unleaded. Not sure whether this is due to the premium fuel. Have anyone experienced this as well? I didn't notice any difference in the power though. Might be because I rarely rev my engine beyond 2500rpm. Will keep a close look at the cool engine light tomorrow again to double check.:smile:

The cool engine light turn off about 30% faster again this morning:w00t:. I guess I need to include that BP Ultimate can indeed provide quicker warm-up. Having said all that, I'll be switching back to regular unleaded on my next refill. I think the price difference is too much to pay for the quicker warm-up. I bought the premium fuel more as an experiment rather than long term use.

[jambo101]

this subject has been beaten to death too many times to count. if a person wants to put premium fuel in his tank and you don't agree just keep it to yourself........
Maybe if you dont like the subject you can just pass on by it rather than offering your equally redundant "beaten to death" $0.02

[ROCKLAND TOYOTA]

Maybe if you dont like the subject you can just pass on by it rather than offering your equally redundant "beaten to death" $0.02
:laugh: FUNNY seeing as im one of the ones who wastes money on the premium gas......

[Snyprwlf47]

Same here, all I run is premium!

[b_hickman11]

Maybe if you dont like the subject you can just pass on by it rather than offering your equally redundant "beaten to death" $0.02

Take your own advice! This same original thread topic has been discussed many times before. So why do you keep wasting thread space?

[jambo101]

Take your own advice! This same original thread topic has been discussed many times before. So why do you keep wasting thread space?
Because i'm not whining about how often this topic arises and have no problem discussing topics that have arisen before.Such as why people throw good money away on the mistaken belief that somehow higher octane gasoline is beneficial to a cars engine thats designed to run on regular octane gas,the only benefit i can see is the gas companies making more money on top of their already obscene profits.

[b_hickman11]

Because i'm not whining about how often this topic arises and have no problem discussing topics that have arisen before.Such as why people throw good money away on the mistaken belief that somehow higher octane gasoline is beneficial to a cars engine thats designed to run on regular octane gas,the only benefit i can see is the gas companies making more money on top of their already obscene profits.

Exactly....what you posted has been "beaten to death"

[rob323]

I filled up my 1.3 auto Yaris yesterday with BP Ultimate. This is the first time I'm using premium fuel since petrol price has gone down a bit and I just want to try it for fun. This morning, I noticed that my cool engine light went off about 30% quicker than it normally took when I use regular unleaded. Not sure whether this is due to the premium fuel. Have anyone experienced this as well? I didn't notice any difference in the power though. Might be because I rarely rev my engine beyond 2500rpm. Will keep a close look at the cool engine light tomorrow again to double check.:smile:

Logically, the type of fuel used should have no noticeable bearing on the time the car takes to warm up. I believe it is probably due more so to the warmer ambient temperatures that we are having at present helping the coolant warm up quicker.

[SilverGlow]

It is exceedingly foolish to run premium in the Yaris. A very small displacement engine, not having high compression, nor turbo...and in fact running premium may well cause the engine to make less power, as it is not tuned for that octane. The speed-racers, boy-racers, often those under 28 years of age run premium...it makes up for voids in their lives, sadly, and is funny too.

[rob323]

It is exceedingly foolish to run premium in the Yaris. A very small displacement engine, not having high compression, nor turbo...and in fact running premium may well cause the engine to make less power, as it is not tuned for that octane. The speed-racers, boy-racers, often those under 28 years of age run premium...it makes up for voids in their lives, sadly, and is funny too.
An interesting opinion, and very different to mine and that of a lot of other rally competitors I know.

[Stargate YARlantIS]

$0.02.....LMFAO!!!

[lh59]

Logically, the type of fuel used should have no noticeable bearing on the time the car takes to warm up. I believe it is probably due more so to the warmer ambient temperatures that we are having at present helping the coolant warm up quicker.

The quicker engine warm-up is what I observed during the past 4 days. I'll take a note again on the engine warm-up period when I switch back to regular unleaded. Like I said, I'm doing this just as an experiment, and I'm not going to stick with premium considering the price difference.:biggrin:

[rob323]

Please do, it will be an interesting characteristic of a higher octane fuel if the warm up time goes back to normal with the regular octane jungle juice.

[puetato89]

i love premium gas.... yes its more expensive, wastes faster, and isnt really made for this car but.... it DOES clean out your engine and will improve mpg in the long-run... this is facts not an opinion so dont shoot the messenger

[jambo101]

i love premium gas.... yes its more expensive, wastes faster, and isnt really made for this car but.... it DOES clean out your engine and will improve mpg in the long-run... this is facts not an opinion so dont shoot the messenger

Got a link to these facts?

[puetato89]

as soon as i go back 2 my old school(mid-florida tech) and tell you the book name... and yes it was legit book

[ROCKLAND TOYOTA]

i love premium gas.... yes its more expensive, wastes faster, and isnt really made for this car but.... it DOES clean out your engine and will improve mpg in the long-run... this is facts not an opinion so dont shoot the messenger i agree with everything EXCEPT the wastes faster part. my tanks seem to last longer with the premium fuel but i think its just me being a BOY RACER........

[*MAD DOG*]

I filled up my 1.3 auto Yaris yesterday with BP Ultimate. This is the first time I'm using premium fuel since petrol price has gone down a bit and I just want to try it for fun. This morning, I noticed that my cool engine light went off about 30% quicker than it normally took when I use regular unleaded. Not sure whether this is due to the premium fuel. Have anyone experienced this as well? I didn't notice any difference in the power though. Might be because I rarely rev my engine beyond 2500rpm. Will keep a close look at the cool engine light tomorrow again to double check.:smile:

I know theres a lot of discussion in this thread. But I just want you to know that your light probably went off earlier only because the temerature varies and was probably higher on that day. In winter it takes a lot longer for the light to go off and in summer some days the light does not even come on. It could be something simple like parking your car in the sun. If your car is warmer then the light will go off sooner. Just the way it is. I doubt the BP Ultimate makes your car run hotter.

[puetato89]

i agree with everything EXCEPT the wastes faster part. my tanks seem to last longer with the premium fuel but i think its just me being a BOY RACER........

well the reason i say it wastes faster is because it burns easier allowing the engine to be at ease and instead of work 2wice as hard

[ROCKLAND TOYOTA]

well the reason i say it wastes faster is because it burns easier allowing the engine to be at ease and instead of work 2wice as hard
i wouldn't say that using premium fuel puts less strain on the motor. thats like saying using premium fuel causes it to heat up faster........:laugh:

[kou]

at less than $20 a tank full reg or pre who cares what you put in.

[Snyprwlf47]

at less than $20 a tank full reg or pre who cares what you put in.

True Dat

[Tamago]

high octane = hotter burn because it's a slower burn..

not recommended without a significant timing advance (which your stock ECU is not gonna do)..

if you put premium in a generator or lawn mower you'll notice the exhaust glowing red.. it's WAY TOO HOT..

[puetato89]

like i said if and when i go to my old school ill pick up a book and post the article on premium gas...

[jkuchta]

Higher octane has NOTHING to do with flame speeds within the combustion chamber or combustion temps. Octane ONLY pertains to a fuel's ability to resist preignition and/or detonation. Premium fuel will not harm your engine.

[Tamago]

Higher octane has NOTHING to do with flame speeds within the combustion chamber or combustion temps. Octane ONLY pertains to a fuel's ability to resist preignition and/or detonation. Premium fuel will not harm your engine.

if your engine does not know to advance timing (taking advantage of the higher octane's resistance to detonation) then how will you be fully burning the fuel in the given amount of time of each power stroke?

[jkuchta]

The Octane rating of the fuel has nothing to do with flame front speeds....in other words regular and premium fuels take the same amount of time to burn.

As far as our car's ability to "sense" the type of fuel in order to advance timing...that's not how it works. The ECU runs the most advanced timing it can, and retards when detonation is detected. The manual says the car can run on regular, not that it was designed to run on regular. Barring any information as to the specifics from Toyota about how aggressive the timing was programmed to get, and taking into account the fact that the 1NZ runs a pretty high compression ratio of 10.5:1, I would posit that the ECU has the capability to retard timing to run on regular, rather than no ability to take advantage of premium.
I would also through out the idea that running regular gas in hot/dry climates may be running the ECU pretty close to it's limit of compensation. I say this because LtNoogie basically couldn't run his new supercharger in pretty cool/wet conditions under any kind of load without getting detonation on regular gas. The Blitz kit is only putting out around a half a bar of pressure, which, if the ECU was programmed specifically for regular gas, should not max out the ECU's ability to adjust the timing to that extent. If he was able to run O.K. on regular (detonation only under extreme load/high ambient temps.), then I would be a little more receptive to the idea that the car was designed to run specifically on regular.

The bottom line for me is this:

Will the car run fine on regular? Yes it will.

Will the engine be producing its maximum performance on regular? No. Detonation will cause the ECU to retard timing, thus keeping the engine from seeing the most advanced timing that it can.

If anyone has any hard data from Toyota concerning the ignition and anti-knock programming for the ECU I would really appreciate it.

Also, if anyone with a scangauge running regular could post some data about their ignition timing vs. load and intake temp that would be really cool. I’ve posted my data here: http://www.yarisworld.com/forums/showpost.php?p=178932&postcount=14

[leasaunce]

there is no point of putting premium on the yaris. its not a sporty engine. by all mean, if it makes the engine warm up quicker go for it.... A Current Affair or Drive did a test with E10,Unleade & Premium. E10 is came last in mileage, follow by unleaded & winner is Premium. anyway....

[ROCKLAND TOYOTA]

The Octane rating of the fuel has nothing to do with flame front speeds....in other words regular and premium fuels take the same amount of time to burn.

As far as our car's ability to "sense" the type of fuel in order to advance timing...that's not how it works. The ECU runs the most advanced timing it can, and retards when detonation is detected. The manual says the car can run on regular, not that it was designed to run on regular. Barring any information as to the specifics from Toyota about how aggressive the timing was programmed to get, and taking into account the fact that the 1NZ runs a pretty high compression ratio of 10.5:1, I would posit that the ECU has the capability to retard timing to run on regular, rather than no ability to take advantage of premium.
I would also through out the idea that running regular gas in hot/dry climates may be running the ECU pretty close to it's limit of compensation. I say this because LtNoogie basically couldn't run his new supercharger in pretty cool/wet conditions under any kind of load without getting detonation on regular gas. The Blitz kit is only putting out around a half a bar of pressure, which, if the ECU was programmed specifically for regular gas, should not max out the ECU's ability to adjust the timing to that extent. If he was able to run O.K. on regular (detonation only under extreme load/high ambient temps.), then I would be a little more receptive to the idea that the car was designed to run specifically on regular.

The bottom line for me is this:

Will the car run fine on regular? Yes it will.

Will the engine be producing its maximum performance on regular? No. Detonation will cause the ECU to retard timing, thus keeping the engine from seeing the most advanced timing that it can.

If anyone has any hard data from Toyota concerning the ignition and anti-knock programming for the ECU I would really appreciate it.

Also, if anyone with a scangauge running regular could post some data about their ignition timing vs. load and intake temp that would be really cool. I’ve posted my data here: http://www.yarisworld.com/forums/showpost.php?p=178932&postcount=14
:clap:

[jambo101]

Keep reading http://www.baileycar.com/gasoline_html.html

Bit long but the jist is=
Our tests confirm that for most cars there is no compelling reason to buy more expensive fuel than the
factory recommends, as any performance gain realized will surely be far less than the percentage hike in
price.

[ROCKLAND TOYOTA]

Keep reading http://www.baileycar.com/gasoline_html.html

Bit long but the jist is=
Our tests confirm that for most cars there is no compelling reason to buy more expensive fuel than the
factory recommends, as any performance gain realized will surely be far less than the percentage hike in
price.
right now percentage hike is what 5 cents.........

[b_hickman11]

right now percentage hike is what 5 cents.........

Still not worth it

[jambo101]

10 cents a liter difference here in Montreal,but even if it was the same price i'd use the octane rating my owners manual recommends.

[rob323]

Bit long but the jist is=
Our tests confirm that for most cars there is no compelling reason to buy more expensive fuel than the
factory recommends, as any performance gain realized will surely be far less than the percentage hike in
price.

There are more reasons to run higher octane fuels other than just for performance gains (which I agree that unless the engine is tuned for, are insignificant), such as smoother revving, better economy, increased knock suppression and better cleaning properties in some brands of higher than normal octane fuel.

[jambo101]

There are more reasons to run higher octane fuels other than just for performance gains (which I agree that unless the engine is tuned for, are insignificant), such as smoother revving, better economy, increased knock suppression and better cleaning properties in some brands of higher than normal octane fuel. Agreed, but those reasons dont apply to the Yaris as its designed to run on regular gas.

[rob323]

Agreed, but those reasons dont apply to the Yaris as its designed to run on regular gas.

Your Yaris may be tuned to run on regular gas (mass produced engines aren't designed for a specific fuel octane rating, they are tuned for it) but the Yaris will still benefit from the same advantages of higher octane fuel that I mentioned previously.

Does the dealer over there recommend you pay an additional cost to put injector cleaner through the car at service time?

[jambo101]

Does the dealer over there recommend you pay an additional cost to put injector cleaner through the car at service time?

My dealer hasnt mentioned it yet,a service i would decline due to the fact that injector cleaner is already formulated into the gas and my 2001 Echo has never had injector cleaner and is running fine at over 200k so i dont see the need for it in the Yaris.
Our higher octane gas is usually 10 cents a liter more than regular,that would equate to a 40 cent a gallon extra for higher octane fuel,kinda defeats the purpose of buying an economy car if you have to pay an extra 40 cents per gallon when you dont have to.

[rob323]

I take it you have not yet tried using a higher than normal octane fuel in your car and not noticed the better than normal fuel economy from it? :wink:

[at3GG]

well im no expert but you cant deny that higher octane will result in more power. The kind we can readily buy may not be that noticeable, but think of this. When people dyno their cars and net lets say 200whp. Then for shits and giggles, they run it on high octane race fuel and net around 230 whp. It is a crazy jump, but its been shown in a bunch of articles. This is obviously a major octane jump, but it does show that 87 up to 93 would result in SOME power gain. BTW the new GTR is FACTORY tuned to run on......97 octane or some wierd crap , but somehow doesnt blow up with the 93 we have here. If higher octane had no benefit, legit "racers" wouldnt bother with it.

P.S however, beating the guy next to you isnt going to be determined by 87 or 93 in your stock/near stock yaris

[b_hickman11]

I take it you have not yet tried using a higher than normal octane fuel in your car and not noticed the better than normal fuel economy from it? :wink:

Some one on here a while back tested regular and super in their Yaris and the Regular always showed 2 mpg better than the super.

[jkuchta]

That's funny...I actually get 2 mpg BETTER with premium.

[jambo101]

I tried a couple of tanks of higher than recommended octane in my Echo a few years ago to see if my Scangauge could detect a difference in power or mpg,results were so insignificant that i never again wasted my money on higher octane again.