Fluid change?
Certified Ford Technician
Joined: Nov 2011
Posts: 231
Likes: 4
From: Montana
Motorcraft... On the diff look for a clutch pack on the right side of the carrier or an L on the left tag, if you do its a trac lok diff and needs the friction modifier or bad things will happen.
Animal Hoarder
Joined: Mar 2011
Posts: 1,029
Likes: 36
From: Hamilton, Ohio
We use nothing but Valvoline in our shop and have had great results. I did my truck with Maxlife Trans Fluid and have been very impressed. I even flushed the power steering with sythetic Valvoline fluid and its incredidble how much the steering has improved. But im still a Castrol man for oil. I think as long as you dont go cheapy Wal-Mart brand youll be alright.
Junior Member
Joined: Dec 2009
Posts: 6
Likes: 0
From: Iowa
Royal Purple is probably the best. I use Mobil 1 as its very easy to find and competitive in the realm of pricing. You can can't go wrong with any of the top three listed; RP, M1 or MC. To each thier own.......
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Member
Joined: Aug 2011
Posts: 33
Likes: 5
From: Michigan
AMSOIL, its more fuel efficient.
"The First In Synthetics"
FIELD STUDY RESEARCH (NO WEAR, NO WHERE!)
New AMSOIL field study “white paper”:
“Fleet Fuel Economy Study with Ford Motor Company.” Yes, you are reading the title correctly. The study was done with Ford and shows a 6.54% increased fuel economy in short- to medium-haul trucking applications. Consider the savings of approximately $195,000 per year for a fleet of 100 vehicles!
New AMSOIL field study “white paper”:
“Fleet Fuel Economy Study with Ford Motor Company.” Yes, you are reading the title correctly. The study was done with Ford and shows a 6.54% increased fuel economy in short- to medium-haul trucking applications. Consider the savings of approximately $195,000 per year for a fleet of 100 vehicles!
Last edited by Z15; Nov 29, 2011 at 08:37 PM.
Senior Member
Joined: Jul 2011
Posts: 561
Likes: 1
From: camp pendleton
Originally Posted by Z15
Member
Joined: Aug 2011
Posts: 33
Likes: 5
From: Michigan