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  1. Amsoil - Worth it? | BobIsTheOilGuy

    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 …

  2. Should I use Amsoil Signature or Extended Life

    Jul 16, 2005 · If I am buying Amsoil, I really don't see the point of buying anything other than their Signature Series. Then again, I live in the US and there are plenty of quality oils available at …

  3. Lake Speed Jr & Repair Geek tested Diesel fuel additives

    Mar 28, 2010 · So the Lake Speed Jr. and Repair Geek just posted a video testing 5 different diesel fuel additives against untreated fuel. Interesting results with Cetane and wear scar. If …

  4. Is Amsoil Really Worth The Money? | BobIsTheOilGuy

    Apr 22, 2008 · Amsoil IS worth the money for protection and longer intervals b/t oil changes. The one thing that you may not have thought about though is that the 6.0 PSD shears oil more …

  5. Is Amsoil really the best motor oil? | BobIsTheOilGuy

    Mar 5, 2003 · Is Amsoil really the best motor oil available for most cars and trucks? Recently people have been posting the results of various tests that have been done. Of course, much of …

  6. Amsoil vs everyone else | BobIsTheOilGuy

    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+ …

  7. Mobil 1 0W20 VS Amsoil 0W-20 Signature Series

    Nov 26, 2006 · Amsoil has 2 0W-20's that are API-certified, the 'XL' and 'OE' 0W-20. IF you want to go with Amsoil, maybe choose one of those. I'm not an Amsoil user, but Amsoil fans seem …

  8. Are Amsoil EAO Filters Actually Better? | BobIsTheOilGuy

    Feb 11, 2007 · Amsoil EAO filters tout 99% filtration @20microns, but the test done by Ascent Filtration Labs shows Fram XG 99% @15microns. For the price, I would hope Amsoil is a …

  9. 75W-90 Gear oil comparison | BobIsTheOilGuy

    Apr 29, 2022 · Looking for some input on different 75w-90 gear oils. It will be used on a 21 Subaru outback and 24 GMC Sierra 1500. I've used Amsoil severe gear before in the Subaru but just …

  10. BobIsTheOilGuy

    Dec 10, 2025 · Boat/PWC Lubrication Threads 1.2K Messages 15K Amsoil 100:1 Marine 2 Stroke Oil Dec 15, 2025 Langanobob