I am going to be the spoiler here but I don't believe in using Aviation Oil, much less a 50w oil in an auto engine. Multi viscosity oils were developed to be compatible with auto engines under a wide variety of climates and conditions. Running a thick 50w oil will only show great oil pressure and restrict oil circulation, causing premature wear and shortening the life of your engine. Stick with the oils the engine was designed for on the road and it will do just fine, 10w30 or 10w40. Otherwise you will rebuild much sooner. Aviation oil is designed not for the usage of the engine but the basics of an aviation engine, like the greater clearances between cylinders and walls, and so forth. It has little to do with how the engine is used and more to do with how the engine is designed and built. Also straight weight oils, though containing more actual crude oil, do not have the oil modifiers that make modern oils superior to the oils of the late 60s early 70s that were basically straight weight. 100W Aeroshell is made to maintain an antique engine, thus is an antique oil. Modern engines, especially tight clearance ones cannot properly circulate thick oils like a 50w oil. More than 10 pounds of oil pressure per 1000 rpms is a waste of horsepower. Better to have the whole engine bathed in oil and protected, than to have 75 # of pressure, and some of the engine starved for oil. Also, ALL CRUDE OIL comes ultimately from one of 3 places: BP, Standard Oil, Amoco Petroleum if memory serves. The rest buy from them. The critical factors of engine oil is proper GRADE based on use, and properly SERVICING the engine, not the brand. A personal preference is to stay away from oils that are paraffin based, and stay with oils that are crude oil based, but I have no factual basis for this. Over a decade of maintaining customers cars and watching driving and maintenance habits, the attention given to regular service was 10 times more important than the brand of oil used, or even the filter. This is paying attention to over 500 vehicles a month, over 11 years. My 2 cents...
Colin & Beverly Rainey Apex Lending, Inc. www.eloan2004cr.com crai...@apexlending.com 407-323-6960
