I'm running H1R at 50:1 and it's great. NOW all oil related questions should be referred to this thread!!! LMAO These guys are mostly experts in the field and beat this subject to death for 5 pages. Read them and all will be revealed to you!!!! LOL http://www.rcuniverse.com/forum/m_65..._1/key_/tm.htm They cover everything from cooking oil to Silkolene.