If you can find some non-detergent auto oil there is no important difference.
The 'detergent' in auto oil permits the use of calcium which has been accused of forming hot spots from deposits in the cylinder heads of air cooled engines. The AD oils in air cooled engines are ashless - dispersant. Calcium is the element which forms the ash deposits. Mobile 1 oil would make a good substitute for AV-1 if it were not for this little detail about calcium deposits. There is likely some auto oil in use in some air cooled engines but I am paying about $2.00 / qt of Phillips X-C 20/50 so there is little incentive to use auto oil at $1.00 / qt. Unlike car gas and MMO which have a good history in airplanes, auto oil doesn't seem worth the trouble. Bob Condon __________________________________________________________________________ ______ To unsubscribe from this list please send mail to [EMAIL PROTECTED] _____________________________________________________________ Get your favorite topic delivered daily. http://www.topica.com/t/11
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