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Author Topic:   Fuel
bryan kaster
Dirt Roller

Total posts: 13
posted January 19, 2003 12:48 AM  
Ive heard that a lot of prople run some type of oil additive in their fuel for some extra llube on the valves. I was just wondering what some of you add. I ve heard that people put a little diesel in thier fuel or Marvel mystry oil or even ATF. any input would be gratly appreciated.

rico 08
Dirt Forum Champ
Total posts: 1139
posted January 19, 2003 08:29 AM  
not in a bomber really only need something like that for alcohol or older heads with soft seats you want to go 100,000 miles.

Dirt Freak

Total posts: 284
posted January 19, 2003 12:53 PM  
As a rule a little upper cylinder wall lubrication never hurts anything. Marvel mystery oil is about the best stuff I have used. Atf and Diesel have too many bad chemicals that could actually hurt you more than help you.

bryan kaster
Dirt Roller

Total posts: 13
posted January 19, 2003 07:50 PM  
About how much marvel mystery oil per how much fuel? i have ran this before but i was seeing if i could either find something that works better or get some new ideas to try. I usuaully would put a quart of marvel oil when i filled up. any other good things that work?

Dirt Forum Champ
Total posts: 5390
posted January 19, 2003 08:31 PM  
You think that is a little too much even if we do add about 10 gallons each fill up our 32 gallon fuel cell?

redneck bubbas racing
Dirt Freak

Total posts: 283
posted January 22, 2003 09:45 PM  
That might be a little too much. When using av gas which has no lubrication added we use 3ounces for every 5 gallons. When used with regular gas in the race car I use 1 ounce for every 5 gallons. No need to use any more than necc.

Dirt Maniac

Total posts: 124
posted January 22, 2003 11:51 PM  
We normally mix a little transmition fluid into ours. We have an older motor and we don't want to take any chances of blowing it up. We run pure stock/bomber and it seems to work really well.

"Blood, Sweat, and Gears"

Dirt Forum Champ
Total posts: 570
posted January 26, 2003 01:31 AM  
I was told from an experienced machiniest that if your heads have been redone, they have the hardened seats and you don't need anything up top to lube the valves. I rebuild my heads every year and just run the racing fuel. (And it is leaded a little anyway)

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