BP Ultimate means engine quicker warm-up?

[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]

Originally Posted by jambo101

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]

Originally Posted by rob323

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]

Originally Posted by jambo101

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]

Originally Posted by rob323

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?

[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]

Originally Posted by 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?

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.