I have an 2002, F-250 Super duty with the 5.4 liter engine. Wanting to protect my investment, at 5,000 miles I swithed over to castrol syntetic oil. Thinking that Castrol was a good oil so there syntetic had to be good too. Now at 20,000 miles I am told that the castrol syntetic is still a wax based oil and can cause build up like other oils. Did I make a mistake switching to Castrol syntetic instead of Mobil one? Is it to late to switch now without hurting my engine in any way ?
I am sure this has been asked before so please excuse the newby question.
Thanks
[ August 28, 2003, 09:22 PM: Message edited by: Fisher ]
I am sure this has been asked before so please excuse the newby question.
Thanks
[ August 28, 2003, 09:22 PM: Message edited by: Fisher ]