EJD05GT

You should use what the owners guide says - Motorcraft 5W-20 Premium Synthetic Blend Motor Oil.

SpikeGT

I use Mobil 1. First change at 1000 miles at dealership. Second change at 3600 and filled with Mobil 1 full synthetic 5w20.

cfr865

I'm still looking for the thread on ticker oil I know I read it somewhere. Must be nice to be perfect !!!!

Shard Phoenix

A few misconceptions

oil can go 15000 miles: Sure can, but filters generally cant, so unless you want your filter to clog up and the bypass on your filter to open up and crap to start flowing through your engine change that oil every 5000 miles or so. Their is nothing wrong with changing your oil within the first 1000 miles either, its a GOOD idea.

Synthetics vs Dino-bone, synthetics just last longer: Not true, synthetic oil is far superior, molecularly finer and a far better lubricant. The ONLY con to running synthetic after your break in period is the price(90% of break in is done in the first 50 miles BTW, and their is a lot of debate weather to drive it hard or baby it, make your own choice).

I personally dont go over 2500 miles between changes on dino-bone oil, I would rather loose the 500 miles on every oil change than loose my engine 100k miles early.

My mustang will only ever see synthetic after the the 2nd oil change

Never run thicker oil than what is recomended in the book, oils have changed a lot in the last 10 years, a 5W20 now protects better than many of the 50W racing oils of the past. Thicker oils will not go through the oil passages properly, and can starve your motor. When ford tears down your now siezed, oil starved motor and checks the oil viscosity your warrantee is shot and now your paying for a new engine, the install and fords teardown time. If your engine croaks with the proper oil in it then you have a warantee to cover it. As far as oil pressure goes, their is a reason why higher viscosity oil gives higher pressure readings... because it doesnt flow as well! You all know what that means. You can have 800lbs of oil pressure and it does you no good if the oil doesnt move.

MikeVistaBlue06

Stick with what the owner's manual recommends. I get Motorcraft 5W-20 and Motorcraft oil filters at Walmart for about $12.

All you ever wanted to know about oil and more: www.bobistheoilguy.com

I recommend that y'all check out all the threads on 5W-20 before experimenting!

Hope this helps.

Mike

gt6974a

Mobil 1 5W20 with motorcraft oil filters. The mobil 1 meets fords specifications, first 2 changes were at the dealer, then 3rd I switched.

FrdMstnggt99

Just made my 2nd oil change on Saturday. I am now running Quaker State High Horsepower Full Synthetic. I believe it is 5W-30. No problems. Slight improvment.

one_focused_svt

ohhh noo crapper state, I've heard to many horror stories from close mechanice about removing the oil pan and find the remnants of quaker state.....oil sludge. Mobil 1 for me!