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Old 02-22-2002, 04:04 PM   #1
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Default which after run oil/ fuel?

i was wondering whats the recommended racing fuel for a .12 os tr engine. also which after run oil to use? i used hobbico once, and it ruined my engine, however i then found out through multiple forums that it does infact ruins engines.

anyway whats suggested?
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Old 02-22-2002, 05:54 PM   #2
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How does Hobbico oil ruin an engine? I used that and Marvel Mystery for almost 2 years now in all my engines. About 6-7 engines and they don't have any rusting or corrosion.

As for fuel, low castor oil means more engine power but less protection. More castor oil means more unburnt fuel which makes an engine run slightly more sluggish but offers more protection in lean conditions and lengthens engine life.
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Old 02-22-2002, 06:22 PM   #3
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I have used marvel mystery oil for 20+ years and have never had a problem. I`ve spoken to some factory guys who have said that their company buys M.M. oil in a drum and repakages it as their own. Whatever you do use after you pull the plug and squirt it down in the head and in the carb,make sure you spin the motor over with your starter box or the pull start to make sure it gets in the bearings. Don`t be afraid to use a lot ,its a bunch cheaper than a motor.
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Old 02-22-2002, 07:14 PM   #4
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the hobbico stuff apperently has water as one of the ingreatants, and maybe silcon. however i lost compression very quickly, and it stalls out even before the compression got bad.

its not that i cant tune engines, this was on a os cv, and then i tried it with the same engine and a ABC piston and sleeve, same results.

i think i will be getting the marvel stuff, however where can i purchase it?
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Old 02-23-2002, 07:08 AM   #5
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I`ve seen it everywhere from walmart to any auto parts store. it comes in pints,quarts,and gallons. Not expensive either.
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