Hey guys...just bought an '02 F150 recently. Doing my first oil change and also installing a mag-hytec tranny pan and rear diff cover.

First of all which engine oil type do you recommend. Local car shop said 5w-20 but I keep reading posts about using 5w-30 or 10-30. My '02 with the 5.4 only has 26k on it, doesn't get driven very much, and I use it for towing on weekends. Which oil type do you recommend?

Second, is Mercon V the correct oil type for the tranny and is 75w-140 the correct oil type for the rear diff? I will be using Mobil 1 full syn for all the oils but wanted to get your thoughts on the oil types.

Appreciate your thoughts.

 

Hi Buddy, and welcome to the Pool of Opinions. Here is mine, unless you are using the vehicle way different than designed by Ford, stay with Fords recommendations. If by chance you put some alteration in this vehicle, than stay with what is recommended for that modification.

 

Thanks for your comment. I'll def keep that in mind. I was just curious as to why people seem to think using other oil types such as a 5-30 or 10-3 is so much better.