Yes, beating a dead horse here. I’m not looking for an argument but am curious. It is often cited here that engines can handle running a wide viscosity range of oils, which I agree with. But for some reason 0w20 (or thin oils in general) are viewed as the devil and shouldn’t be used in engines that previously specified a higher viscosity.
Example: the VW / Audi 1.4 TSI and 2.0 TSI. They previously ran 502.00 (30-40 grade) but now run 508.00 (0w20). So again, if engines can handle operating under such a large viscosity range (think thick oil when cold and thin when hot, which is quite the spread in CST measurement, and they DO handle that viscosity difference well)...why would it be detrimental to that engine to drop the grade down to a 20 from a 30? That is only a few CST thinner at operating temp (12 cst for 30 and 7ish cst for 20). That seems negligible IMO
Honest question.
Example: the VW / Audi 1.4 TSI and 2.0 TSI. They previously ran 502.00 (30-40 grade) but now run 508.00 (0w20). So again, if engines can handle operating under such a large viscosity range (think thick oil when cold and thin when hot, which is quite the spread in CST measurement, and they DO handle that viscosity difference well)...why would it be detrimental to that engine to drop the grade down to a 20 from a 30? That is only a few CST thinner at operating temp (12 cst for 30 and 7ish cst for 20). That seems negligible IMO
Honest question.
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