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Author Topic:   Synthetic oil with methanol?
Dirt Maniac

Total posts: 120
posted March 02, 2005 08:52 PM  
I was planning on using synthetic oil in my methanol powered engine, but I just heard for the first time that the two don't mix which causes problems on startups and maybe other smaller related things as the alcohol eventually finds its way into the crankcase and into the oil. But another interesting sidenote about that is that this person recommended using about half a quart of a synthetic oil additive. I really have no problem with that as it would be such a small amount, but I was curious just the same.

What is the opinion about that one?


Dirt Maniac

Total posts: 180
posted March 02, 2005 11:55 PM  
I guess that's a new one to me, lol. I've been using synthetic blend oil with methanol for 4 years now, with no problems. I wouldn't use anything else.

Dirt Forum Champ
Total posts: 2007
posted March 03, 2005 07:34 AM  
Same here. Used synthetic for 4 years on alky. Royal Purple 41 oil is reccomended for use with alky, we also used mobil1 even though its not formulated for alky and never had trouble either. With any oil you dont want to run overly rich with alky and contaminate the crankcase.

[This message has been edited by dirtbuster (edited March 03, 2005).]

Dirt Maniac

Total posts: 180
posted March 04, 2005 09:22 AM  
One other thing I was thinking about, you don't want the oil and alky to mix anyway. If you have the jetting right and a good ring seal (I only run Total Seal Gapless rings) you shouldn't have a problem with any oil you run.

Just stick with a good quality oil which is approved for alcohol use and you should be fine. Royal Purple 41, Schaeffers Racing Oil, Amsoil Series 2000, Redline, etc. should all work well.

[This message has been edited by sdracer12 (edited March 04, 2005).]

Dirt Forum Champ
Total posts: 570
posted March 04, 2005 03:15 PM  
Sometimes, on startup with a new engine on Alcohol, you might get "alcohol wash", it makes the oil turn white. It goes away after the enging is broke in and it doesn't happen all the time, I am sure there is a reason why (like cheap rings or something like that) but its nothing to get worked up about unless it never goes away. then you have a problem...

Ego Racing
Dirt Forum Champ
Total posts: 724
posted March 10, 2005 08:41 PM  
Royal purple 41. Our motor ran it for the season and after 21 races our motor builder did not believe we ran it that much. He said he would have re assembeled it and run it if it were his motor, and just put in new gaskets. He said the rings were even in great shape and the leakdown was better than some of the newer motors he checked. We were also running the Zero Gap Rings.

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