I have a 2005 Fleetwood Pace Arrow - GM WORKHORSE would it be wise to put in full synthetic oil or semi-synthetic oil? The engine has about 45,000 miles on it.
I have heard so many different explanations about synthetic oil and I am getting to point where I think it is cheaper to just use dino oil and change often or on schedule with the manufactures schedules. according to some reports dino oil is OK using it in this fashion