Quote:
Originally Posted by maxfnz
- Manual transmissions probably won't benefit from a heater siimply because of the oil viscosities ... most manuals specify a monoweight oil (80, 90) and if multiweight (80-90 or say 75-140) then it's going to get **thicker** as it heats, not thinner. Surely in that case you need cooling, not heating?
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That is not going to happen. All gear oils have lower viscosity at higher temperature. Multi-grade oils just have an improved viscosity index which means that their viscosity will change less than the viscosity of a single-grade oil.
