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Gang, I need to revise/correct my previous post on oils - thanks to all. I stand corrected on the cling thing. One of the reasons I put cling in " ". Reviewing my "Notes To Self" from a few years ago I find I decided to settle on multi BUT also found I put an * for additives (unfortunately, I didn't expound). I also had multi- for general use, especially in spring and fall, but straight-weight for trainers, summer heat, and guys who run their engines hard. Remember, these are things that I concluded..... ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- Most of the mechanics I've talked to about this recently have the same opinion, but I guess it's time for more research in this area. Then, there's the synthetic oil debate section...... Tom > ----[Please read http://ercoupers.com/disclaimer.htm before following any > advice in this forum.]---- > > > > I wonder If one would look at the dip sticks with the engine oil hot, would > the Shell parasynthetic have more cling than the completely non synthetic? > Lets use 50 straight oil against the Shell 15/50 for the test. Synthetic oil > is suppose to hold its viscosity better at high temperature. I wonder if > it > really does? If it does would this tend to leave more protection on parts > after it cools down? An interesting thread I would like to hear more. Jim Palmer M-10 N9513V > > Tom says: > "They > definitely "cling" to the exposed parts better and provide better > protection against corrosion than straight weight oils - an important factor for planes that tend to sit." > Tom. > > Hartmut says: > The opposite is true. > The problem is that of the multiviscose oil is stripping itself off the > parts because these oils are basically thinner weight stock oils with a > lot > of additives. > Starting with a low viscosity oil is desired, it assures a good oil > transfer > to all lubrication points on cold starts. A negative effect is that multi > viscose oils can't cling on metals as let's say a 50 weight oil would. At cold temps, the 50 weight oil is a thick mass, that clings to the > metal > much better just look at the dip sticks. > Hartmut > > ============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm > > > > ============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm
