Additives - Toyota Yaris Forums

NJBob · 03-29-2009, 01:19 PM

Upper Cylinder Lubricant...adds to the gas tank 2-3 oz. per tankful.

daf62757 · 03-29-2009, 04:48 PM

Quote:

Originally Posted by NJBob

Upper Cylinder Lubricant...adds to the gas tank 2-3 oz. per tankful.

Has anyone experimented with more ounces per tank? Yesterday, I was filling up and had about 5 ounces let so I just put it all in the tank. My around town driving for the first bar was 72 miles...about 6 more than I usually get for city driving. So, has anyone else had some experience with putting more in?

Yaris Hilton · 04-04-2009, 09:07 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, 10:53 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.

03-29-2009, 01:19 PM	#1
NJBob View User's Garage Drives: 2008 Yaris Liftback Join Date: Oct 2008 Location: South Jersey Posts: 444	Upper Cylinder Lubricant...adds to the gas tank 2-3 oz. per tankful. __________________ \| \|

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04-04-2009, 09:07 PM	#3
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, 10:53 PM	#4
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.