I appreciate all this information - and the various opinions - but it reminds me of the days I use to work in court and the expert witnesses for the plaintiff and the defendant would put their hands on the Bible and testify to exactly the opposite stories. I am totally confused as to which is the best product (although I've been leaning towards Amsoil) for my new truck. If I could come to a conclusion on which manufacturer's oil, then I have to decide which weight - 5/20 or 5/30 (and, yes, I know I've heard the warranty issues - but many a contributor to this issue has said Ford only did it because of the mileage factor. Talk about the "jury being out," I'm totally confused! (But that won't keep me from continuing to read.)
Thanks, guys (and gals).

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dennis

 

I have a friend who actually ran a test of oils for a project. The sythetics all outperformed the regular oils. He said the ONLY synthetic oil that was significantly better than any other synthetic was Royal Purple. It won every test they performed. Having said that and believing him, I still run Mobil1 5w30 because it's good and I can get it anywhere.

 

SOMEONE JUST STATED THAT WAL-MART HAS 5W20,WHICH TYPE THEY DIDN'T SAY,I'VE SEEN 5W20 MOTORCRAFT AT NAPA,GET YOU SOME.

 

It was motorcraft brand


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My Home Page


Lubrication Forums

 

My vote goes with Amsoil.

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<A HREF="http://www.angelfire.com/id2/Racer4YSR/F150.html" TARGET=_blank>F150IslandBoy
</A>

1997 F150 Lariat
SuperCab, Dark Toreador Red w/ Gold, Styleside, 4.6L, A/T, A/C, 3.55 Limited Slip, Class III Tow Package, Leather Captain Seats, Sliding Rear Window.
Modifications:
Airaid FIPK, Flowmaster Delta Flow 50 Series, Stull Billet Grill, Clear Corner Lens, Bugflector II, Viper 500ESP Alarm, Herculiner, Cobra Trapshooter 3 Radar Detector, CARR Tubular Nerf Bars, White Face Gauges, Ventshade Ventvisors & Taillight Covers, Monroe Sensa-Trac w/ Safe Trac Shocks, NFA 1400 Compact 55W=&gt;85W Halogen O.E. Lights, Durango 255/70R16, Chrome eyelet tie downs, Smoked front lic. plate cover.

Engine Oil: Amsoil 5W-30 Synthetic
Oil Filter: Motorcraft FL-820S
Trans. Fluid: Amsoil Synthetic ATF
Diff.Oil:Amsoil Synthetic Series 2000 SAE 75W-140

 

BBB,
You asked for "qualified credentialed oil experts" to give you answers. If you e-mail me I'd be glad to answer your questions. And Yes I'm a qualified credentialed oil expert. I believe that over 22 years in the oil business and a Certified Lubrication Specialist by the STLE (Society of Tribologists and Lubrication Engineers) would qualify me to answer your questions.

Sincerely,
Kevin Dinwiddie STLE CLS
Kdinwiddie@socal.rr.com

 

Craig O is correct....I have used Royal Purple for 5 years both in the truck and in the industrial area. It kicks butt on any synthetic in all areas including a simple falex test and timken 4 ball wear test, not to mention the race track performance. Ask Warren Johnson and Matt Hines what they use...

 

Go with Amsoil and you'll never look back in doubt or worry again. I am here to tell you first hand this stuff really is excellent!!

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Jeff Randol
2000 Ford F150
Ext. Cab 4x4 Lariat
5.4 Auto, Off Road Package, Fully Loaded
& lovin it!!
MODS: KN Air Filter
Glasspack exhaust

Upcoming: AMSOIL Dual Oil filter system, FIPK, Fiberglass Topper, Spray-In Bedliner, Wood Dash Kit