I'm currently restoring an 1986 atc125m. I've redone the bearings, rebuilt the carb, replaced the spark plug, checked the top end, & bought a few other random odds & ends, but a question i need answered..... What oil should i run in my trike??? i've heard 10w40 would work fine, but is there any specific kind? Would it be alright to run synthetic? or should i go none synthetic? & would it hurt to run ethanol remover through the trike? Also.. if anyone can find me a link to a damn site that sells an oil filter for my trike it would be greatly appreciated lol. yea.. i know it looks like crap but it runs pretty darn good and i hope to keep it that way. i picked it up in it's current condition for 150$ if anyone cares to know. Thanks.