Hold On

Time to replace my radiator aux. fan switch. Anyone have a vendor where I can get one thats about 85`C ? I see 75 and 92 but I think one is too low and one is too high. This is going on an 83S

jwillman

Not to hijack the thread but what is the problem with running 75 deg? I recently had to replace my thermostat and went with 75 for both the stat and the fan switch on my 79 4.5L. Will this cause me issues down the road?

Thanks

Mrmerlin

running the engine at a higher temp will make it more efficient ( IE Higher fuel mileage) and will boil off more of the water entrained in the oil.
This is more important on the S4 and later engines though