Quote:
Originally Posted by tuccillo
I prefer to listen to the people who engineered the product. Some people think they know better than the manufacturer about what multi-viscosity rating of oil should be used. Never understood the logic of making arbitrary decisions.
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I don't know under what constraints the engineer designed, there always are, nor the marketing and legal review the manual went through to minimize legal exposure. The maintenance engineers have to keep the machine going and sees all the constraint issues which the design engineer can't possibly design for within the constraints. . having lived and worked with a family of design and maintenance engineers, with all different types of engines and gears, that's who I listen to. .
but if you think that's arbitrary, then the only possible correct answer is in the manual.