Chevron Progard Techron Fuel Additive

[Lane Ranger 11,125]

I added some Chevron Progard small engine fuel additive with Techron to my gasoline for my Lawn Ranger L-157 last week and what a surprise this week!

My engine died out while mowing and I was not sure what was happening.

I had just put on a new Cole Hersee igniton switch (the original finally died) and I thought for awhile I was having electrical problems. Low and behold -after removing the sparkplug -the biggest loan of carbon black you ever saw emerged!

I replaced the plug and cleaned it out two more times after running the engine while parked.

I just wondered if anyone ever used a fuel additive for small engines before and experienced this type of problem. I watch my oil on my Tecumseh H60 6HP engine like a hawk but all the carbon was a surprise. B)

[poodle 0]

I run nothing but 93 in my tractors and in my plow/puller (1056) I run 93 with a bit of 104 0ctane booster. I haven't had a problem yet I personally think it runs better and gives be a better performance.I'm not saying its right but I do it and like the results it gives me hope this helps ?

[oldandred 15]

could it be the engine doesnt run full throttle all air cooled engines must run full throttle or the will load up carbon is a problem with low RPM

If I were you I would pull the head off and clean it up.

I never use addtives in the gas or oil it doesnt help small engines

good gas and oil change helps keep them running

and I have more than a few tractors

[HorseFixer 2,013]

The fuuel additive you are talking about breaks up carbon deposits. It very well could have did just that and fouled or started fouling the plug. That would be my guess. :omg:

[bitten 134]

Duke or anyone

Is that a bad thing or a good thing? I know that you dont want carbon buildup in a small engine(or any engine for that matter) But is this a way to remove it or would you be better off like old and red said and remove the head and clean it that way.

I also use the high octain gas as that is what Kohler recomends, but I know there is going to be build up.

If you remove the head and do it how offten should it be done? I usally dont run the Wheel Horses at full throttle except for tilling.

P.J.