Originally Posted by ranger024x4
not going to say where but when I worked for a dealership (toyota/lexus), all they used was aftermarket red coolant and recycled oils.
My local Ford dealership only has generic 5W20 in bulk...if anyone comes in for an oil change (in any car), it gets that 5W20, regardless of what oil is specified, 5W30, 10W30, 10W40, etc. They literally only have one tank of 5W20 for their overhead dispensers...any other grade of oil, you have to either bring in or pick from their slim selection of Motorcraft oils.
For the record, my owner's manual says the 4.0 uses 30-weight oil only...same as the Mustang with the 4.0. I'm okay with fudging on the winter rating, but not on the weight of the oil. 30 weight is 30 weight...40 is 40...20 is 20...i keep those in check.