South Western Ontario, Canada | I was listening to road dog trucking(XM radio).
They had a engineer from Cummins on and he touched on this subject. Its all about emmissions and mileage. Hotter the engine the more reduced the emmissions are and hotter the oil, the easier the oil flows to create less parasitic power loss from engine.
Guess the oils are designed to handle such heat so it shouldn't be an issue. (but I've been wrong before and will be wrong again) |
Oil temperature ISX.
