Lubrication is a good thing
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Im lost without the PW thread!!!!
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The reason is simple: it would be a SAE 10 motor oil at 210° F! The lower the viscosity, the more wear will inevitably occur. This is why it is best to use the proper oil viscosity recommended by the auto manufacturer as it will protect hot and at cold start ups. Obviously a 10W-10 motor oil won't have the film strength to prevent engine wear at full operating temperature like a 5W-20, 10W-30 or 5W-30 motor oil for example.
The VI additives have the effect of keeping the oil from thinning excessively when heated. The actual mechanics of this system are a little more complex in that these additives are added to a thinner oil so that it will be fluid at a cold temperature. The VI additives then prevent thinning as the oil is heated so that it now can pass the SAE viscosity rating at 210. For example; if you have a SAE 10 motor oil it will flow like a 10W at the colder temperature. But at 210 degrees it will be a SAE 10 giving us a 10W-10 or SAE 10 viscosity rating. Obviously this is good at cold start up, but terrible at engine operating temperature especially in warmer climates. But by adding the VI additives we can prevent the oil from thinning as it is heated to achieve higher viscosity numbers at 210 degrees. This is how they make a petroleum based motor oil function for the 10W-30 rating. The farther the temperature range, like with a 10W-40, then more VI additives are used.www.1320diesel.com Home of the Fastest Diesels!
http://youtu.be/dEDdM0Y3IGs?hd=1
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royal purple exceeds GF-5 specs =) here is the label of there 15w40
Royal Purple motor oil is recommended for use in all 4-cycle gasoline engines and both 2-cycle and 4-cycle diesel applications, including cars, trucks, motor homes/RVs, boats, commercial fleets, and stationary industrial diesel engines. Royal Purple motor oil is a tough, long-life, high performance oil that delivers superior protection and enhanced performance. It gains its performance advantages from a blend of synthetic oils, plus Royal Purple's proprietary, synthetic Synerlec additive technology, which greatly reduces engine wear, including ring, cylinder, and bearing wear. It's extremely tenacious, adheres to engine surfaces, and remains after shutdown, providing protection upon initial startup. Royal Purple motor oil also extends oil drain intervals. Less oil is purchased and less oil is disposed of--it's good for your vehicle and good for the environment. Multi-grade and straight-grade oil is available. Royal Purple motor oil is compatible with other mineral and synthetic motor oils.www.1320diesel.com Home of the Fastest Diesels!
http://youtu.be/dEDdM0Y3IGs?hd=1
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