I just purchased my first F150 06 Screw 5.4 3V.I do alot of city driving mostly stop and go.Some of my friends tell me I should change all my fluids like Rear Axle,Transmission,Engine,and Power steering over to Synthetic because it would be less friction and everything will last longer.I have to keep this Truck for 10 Years. Is this information correct or are they clueless?I value your advice. Thank You.

 

I would think that the optimum fluids for your vehicle are the ones that are recommended by the manufacturer. Using anything else is a shot in the dark. My truck is 10 years old and has 200,000 miles on it, and I'm running motorcraft everything, except engine oil. Your friends are BS'ing you. But it's probably all they've heard, so they don't know any better. A lot of people think that "because it's expensive, it's better". That isn't always true. If it helps you sleep at night, go ahead and put "space shuttle" oil in it. With any luck, it might last as long as it would if you had put "dollar general" oil in it.

 

good synthetic motor oils are generally better performers under high heat conditions...

as far as differential, steering, transmission, i don't know

 

Better than what? What "high heat" conditions are you referring to? Your truck's thermostat keeps the engine at a constant temperature regardless of power output or ambient temp. If your engine gets hot enough to cook your engine oil (I have seen it happen) you will have a lot worse things to deal with.

 

Check some of the trans forums and youll find guys saying that after they swithced to sythetic in their trannys and diff. the fluid was mildly warm and nowhere close to overheating. I put amsoil in my trans, rear diff, and engine. Makes me feel all warm inside

 

If you change your fluids religiously at the "severe service" intervals listed in your manual, you should have no problem whatsoever in getting 10 years/200k miles of service out of your drivetrain -- so long as you don't abuse it in other ways. No need to use special synthetic lubricants -- the Motorcraft variations of these products (or other high quality brands) will serve you quite well. Leave the "boutique lubricants" for the guys who get some sort of bizarre thrill out of making oil more complex than it really needs to be!

 

That, in my opinion, is the ONLY benefit to running synthetic. Do what makes you happy, Miller. I hope it doesn't break your truck. Or is it certified?

 

not certified but built ford tough!

 

I was asking about the Amsoil. I have heard that some "flavors" of amsoil don't have the api certification that your owner's manual calls for..

 

oh yea mine meets ford standards. 5w20 oil and 75w140 in the rear, meets the Ford WSS-M2C930-A

 

Where do you get it? I've haven't seen it in any stores.

 

I have a preferred membership and order it online, from vegas to socal shipping takes about 3-5 days and I get about 20% off all orders. If you were local I would order ya up some if you would like the membership its $20 a year or $10 for 6 months and you get access to all of their items EVERYTHING! And its cheap...well cheaper.

https://www.amsoil.com/storefront/Se...CategoryID=286

 

Thanks, but I can't afford it. I'm a poor college student.

 

Your 06 Ford already has synthetic fluids in the rear end and transmission from Ford. Transmission fluids from the manufacturer will always be far better for transmission life than an after market blender that makes a fluid that gets in the ballpark with friction coefficents but never is on the money as per design perameters. Engine oil......as long as it meets Fords 930 spec, you won't find a better oil regardless of price or advertizing hype. Your money, your truck.

 

IMO,

Ford designed and built it, I trust they know what's best for it.