Apr 13, 2012 · Amsoil, Shaeffers and T6 are all very capable fluids. But, depending upon individual application of fluid and equipment, there may or may not be a clear "winner" above the others. The …

Nov 8, 2017 · Just had some analysis come back for my 2021 Ford F350 for AMSOIL Signature Series that I recently switched to and the motorcraft that was in it before the change. Both done right around …

Mar 13, 2024 · Both of those Amsoil filters look to have some leaf spring to end cap "seal" leak gaps. The one with the smooth looking leaf spring must have a warped leaf spring that won't sit flat on the …

Dec 26, 2005 · Hi, I am new here but have lurked a bit. I have a 1993 400E and currently have Amsoil EFM in it and was curious about whether the new HP-X is the best oil possible due to the extremely …

Jan 21, 2024 · Amsoil OE is a GrpIII base stock oil while Mobil 1 0w40 is a GrpIV I believe. Both oils should get the Job done for your application That’s the thing, Mobil 1 seems to change their formulas …

Nov 16, 2002 · Of course and Amsoil 100% agrees. Buster posted this, not me or Amsoil. I know the outcome here. Very few folks have attempted to answer @buster 's question. The way Buster started …

Apr 22, 2008 · Amsoil is a high-end high-quality synthetic-based line of lubricants; it has many direct and indirect competitors. With that in mind, you need to understand that "synthetic" lubricants are much …

Jul 19, 2004 · Amsoil doesn't encourage extending OCI without UOAs, or in severe service conditions. They also recommend regular filter intervals and there are qualifications on 100K+ cars. I don't do …

Nov 21, 2024 · 2024 Silverado 3.0 Duramax, 18,800 total miles; 5W-30 Amsoil Diesel Oil 5,000 miles used oil analysis

Feb 9, 2024 · If I owned that truck, with the 3.0 Duramax, I would run a 5w40 such as VPBE, Delvac ESP, Delo 400 XSP, HPL CC CK-4, or AMSOIL Diesel oil. Diesel oil is made to handle higher soot …