gear oil
11-08-2007, 11:41 PM
#1
workin for parts!!!
Thread Starter
gear oil
howdy all,i have a stupid? question. how much of a mileage increase would i see if i swapped to a 75w-90 gear oil versus the stock 75w-140 that ford puts in? i regularily drive at -30 to -40 celcius. thanx.
11-09-2007, 07:43 AM
#3
Senior Member
Don't think that you would see any measurable mileage change.
However, you may wish to check with Ford as to whether there is a different viscosity range recommended for your region.
However, you may wish to check with Ford as to whether there is a different viscosity range recommended for your region.
