Additives - Page 4 - Toyota Yaris Forums

NJBob · 03-31-2009, 07:39 AM

The bottle says it can't hurt if you overdose but I didn't read anything where you get better mileage that way.

Klink10 · 03-31-2009, 11:20 AM

I put a full smaller bottle in. Kept it from the original purchase when I also got the mega bottle. Just refill from one to the other and place in car for next fillup. Have not noticed any significant improvement other than it feels smoother.

NJBob · 04-01-2009, 04:42 PM

I'm done. After my 5th fillup I'm not seeing any real results and I'm tired of driving like Grandma. It was worth the effort though just to see. Now I can relax and drive the way I want. As I said in my other post...there are just too many stops to allow me to do any better.

Yaris Hilton · 04-04-2009, 08:07 PM

Speaking of carbon cleaners, I ran across B-12 Chemtool fuel additive in the Wal-Mart. Supposed to clean everything in the fuel system to the intake valves, when added to the fuel tank. I read the label and recognized the ingredients (toluene, methanol, acetone, 2-butoxyethanol a.k.a. butyl cellosolve, mixed xylenes and methylethylketone) as pretty much the same stuff I'd used in the old days poured in the carburetor to clean carbon out of the combustion chambers. So I got another can, warmed up the Nissan VG30E in my '98 Mercury Villager with ~108K miles, revved it up and ran about 1/4 can into the vacuum fitting right behind the throttle plate that the evaporative emissions canister hooks to, finishing by running it in fast enough to kill the engine. Pretty much just like the Seafoam procedure. Let it sit about 10 minutes, started it back up, gunned it hard a few times, drove it around and hit WOT up steep hills several times. Reset the trouble light (code set was P300, random multiple cylinder misfiring), poured the rest of the solvent in the tank, and it's good to go. Of course, I don't KNOW that it had caked up garbage on the intake valves and in the combustion chambers, but the '95 just like it started having problems with intake valves sticking and a cold engine knock that sounds like "carbon knock" around this mileage. And I've used truckloads of cheap off-brand gas. So I'll call it preventive maintenance.

Yar Is Word · 04-05-2009, 09:53 PM

Sorry Mr Bob that it's not working for you. I am using it in my Yaris and have not noticed much difference either, except for the smoother running. As I said before, I did get improvement using it in an Echo but that was after it had a couple years of wear.

POORSHA · 04-07-2009, 05:08 PM

I don't get it I am using it, on third tank, 128 mi round trip daily and my milage has gone up by 3.5 mpg. using scan gauge, filling up at same pump. Maybe because it is 95% highway?

Yar Is Word · 04-07-2009, 11:31 PM

That's good news, especially if your Yaris has a motor like the one pictured!

NJBob · 04-21-2009, 05:22 PM

Well this is interesting news.....I'm still using up my big bottle of UCL but this fill I drove like I want. I got on it. I drove at 60-70 mph. Took off fast....wound out the revs to like 3500-4000 rpm or so...and just enjoyed my Yaris and guess what.....I still got over 37 mpg I expected more like 34-35. For a difference of about 30 mi. per tank it ain't worth it to drive like Grandma for me. I can usually get near two weeks from a fillup anyway so what the heck, right? Spock out.

suiller · 04-24-2009, 05:32 AM

I use just the well known ZX1 & never had a problem...

EasyDriver · 05-13-2009, 11:13 AM

I use Lucas Upper Cylinder Lube in my car. I typically put a bottle of fuel injector cleaner in my tank after an oil change. I am wondering is this is a little redundant or basically unneccessary.

Yaris Hilton · 05-15-2009, 10:37 AM

Probably so, but I can't imagine it will hurt anything.

LittleRed · 06-04-2009, 08:42 PM

Quote:

Originally Posted by SilverGlow

The amount of additives in premium gas is not very much, in comparison to adding a bottle of cleaner. Also, our Yarii do not benefit from higher octane gas, and in fact I found that my Yaris gets worse milage on premium. It's just not tuned to take advantage of the higher octane. Using premium is like throwing $ out the window.

My yaris performance greatly increased when i used 91 octane gas...93 retards the timing...thus, making it slower, 87 , it feels like its dragging...91 octane and fuel system cleaners regularly..keep it running perfect..

roxy1 · 06-05-2009, 09:55 AM

Quote:

Originally Posted by LittleRed

My yaris performance greatly increased when i used 91 octane gas...93 retards the timing...thus, making it slower, 87 , it feels like its dragging...91 octane and fuel system cleaners regularly..keep it running perfect..

aaaah..i needed a good laugh this morning.........thanks!!!!!!!!!!!!!!!

03-31-2009, 07:39 AM	#55
NJBob View User's Garage Drives: 2008 Yaris Liftback Join Date: Oct 2008 Location: South Jersey Posts: 444	The bottle says it can't hurt if you overdose but I didn't read anything where you get better mileage that way. __________________ \| \|

04-01-2009, 04:42 PM	#57
NJBob View User's Garage Drives: 2008 Yaris Liftback Join Date: Oct 2008 Location: South Jersey Posts: 444	I'm done. After my 5th fillup I'm not seeing any real results and I'm tired of driving like Grandma. It was worth the effort though just to see. Now I can relax and drive the way I want. As I said in my other post...there are just too many stops to allow me to do any better. __________________ \| \|

04-21-2009, 05:22 PM	#62
NJBob View User's Garage Drives: 2008 Yaris Liftback Join Date: Oct 2008 Location: South Jersey Posts: 444	Well this is interesting news.....I'm still using up my big bottle of UCL but this fill I drove like I want. I got on it. I drove at 60-70 mph. Took off fast....wound out the revs to like 3500-4000 rpm or so...and just enjoyed my Yaris and guess what.....I still got over 37 mpg I expected more like 34-35. For a difference of about 30 mi. per tank it ain't worth it to drive like Grandma for me. I can usually get near two weeks from a fillup anyway so what the heck, right? Spock out. __________________ \| \|

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03-31-2009, 11:20 AM	#56
Klink10 View User's Garage Drives: 2007 Yaris Liftback Join Date: Sep 2007 Location: 910 Posts: 1,229	I put a full smaller bottle in. Kept it from the original purchase when I also got the mega bottle. Just refill from one to the other and place in car for next fillup. Have not noticed any significant improvement other than it feels smoother.

04-04-2009, 08:07 PM	#58
Yaris Hilton Half a Bubble Off Plumb Drives: 2009 Yaris Sedan Join Date: Mar 2009 Location: Bristol, Tennessee, USA Posts: 1,593	Speaking of carbon cleaners, I ran across B-12 Chemtool fuel additive in the Wal-Mart. Supposed to clean everything in the fuel system to the intake valves, when added to the fuel tank. I read the label and recognized the ingredients (toluene, methanol, acetone, 2-butoxyethanol a.k.a. butyl cellosolve, mixed xylenes and methylethylketone) as pretty much the same stuff I'd used in the old days poured in the carburetor to clean carbon out of the combustion chambers. So I got another can, warmed up the Nissan VG30E in my '98 Mercury Villager with ~108K miles, revved it up and ran about 1/4 can into the vacuum fitting right behind the throttle plate that the evaporative emissions canister hooks to, finishing by running it in fast enough to kill the engine. Pretty much just like the Seafoam procedure. Let it sit about 10 minutes, started it back up, gunned it hard a few times, drove it around and hit WOT up steep hills several times. Reset the trouble light (code set was P300, random multiple cylinder misfiring), poured the rest of the solvent in the tank, and it's good to go. Of course, I don't KNOW that it had caked up garbage on the intake valves and in the combustion chambers, but the '95 just like it started having problems with intake valves sticking and a cold engine knock that sounds like "carbon knock" around this mileage. And I've used truckloads of cheap off-brand gas. So I'll call it preventive maintenance.

04-05-2009, 09:53 PM	#59
Yar Is Word Drives: Yaris 5 door liftback Join Date: Jan 2009 Location: Portland, OR Posts: 648	Sorry Mr Bob that it's not working for you. I am using it in my Yaris and have not noticed much difference either, except for the smoother running. As I said before, I did get improvement using it in an Echo but that was after it had a couple years of wear.

04-07-2009, 05:08 PM	#60
POORSHA View User's Garage Drives: 2008 LB Join Date: Nov 2008 Location: NE CT Posts: 418	I don't get it I am using it, on third tank, 128 mi round trip daily and my milage has gone up by 3.5 mpg. using scan gauge, filling up at same pump. Maybe because it is 95% highway?

04-07-2009, 11:31 PM	#61
Yar Is Word Drives: Yaris 5 door liftback Join Date: Jan 2009 Location: Portland, OR Posts: 648	That's good news, especially if your Yaris has a motor like the one pictured!

04-24-2009, 05:32 AM	#63
suiller View User's Garage Drives: Yaris Sol 1.3 dual VVTi 101hp Join Date: Apr 2009 Location: Turin - Piedmont - italy Posts: 48	I use just the well known ZX1 & never had a problem...

05-13-2009, 11:13 AM	#64
EasyDriver Drives: 2008 Yaris Meteorite LB Join Date: Feb 2009 Location: Southern Michigan Posts: 61	I use Lucas Upper Cylinder Lube in my car. I typically put a bottle of fuel injector cleaner in my tank after an oil change. I am wondering is this is a little redundant or basically unneccessary.

05-15-2009, 10:37 AM	#65
Yaris Hilton Half a Bubble Off Plumb Drives: 2009 Yaris Sedan Join Date: Mar 2009 Location: Bristol, Tennessee, USA Posts: 1,593	Probably so, but I can't imagine it will hurt anything.