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Old 01-03-2000, 07:08 PM
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Roger is completely correct on this one. Only one other thing I might add is that because piston to cylinder wall clearances are, out of necessity, larger when the engine is cold, more combustion blowby will occur in a cold engine vs. a warm engine. If you use your diesel for short trip driving where the engine is never fully warmed up, you will load your oil much more heavily with soot than VA300SD will. Diesels are not the best choice for short trip drivers. If you fall into this category, you should consider changing your oil more frequently using a diesel service approved oil. Unmitigated soot loading causes oil thickening which in turn affects pumpability which in turn affects lubricity to critical engine parts.
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