Re: zddp

[a440plus6 <a440plus6@xxxxxxxxx>]

MULTI-VISCOSITY OILS
"Multi viscosity oils have polymers added to a light base (5W, 10W, 20W), which prevent the oil from thinning as much as it warms up. At cold temperatures the polymers are coiled up and allow the oil to flow as their low numbers indicate. As the oil warms up, the polymers begin to unwind into long chains that prevent the oil from thinning as much as it normally would. The result is that at 100 degrees C, the oil has thinned only as much as the higher viscosity number indicates. Another way of looking at multi-vis oils is to think of a 20W-50 as a 20 weight oil that will not thin more than a 50 weight would when hot.

Here in FL, I want the oil to get to everywhere it needs to be as fast as possible. After it warms up outside....always 90,s or higher I want the protection of the higher viscosity.

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