Re: isn't Rotella too much zinc for catalytic conv cars ? NO - Saab General Bulletin Board - Saabnet.com
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There is some discussion on that point. I've read on the topic extensively. . May I summarize ? The fact is Rotella has been reformulated and is now recommended for cars AND trucks . The level of zinc has been reduced ( It is still more than most oils ) Even w/ the old formulation? ( where it was a "Diesel " oil It was very usable w/ No harm. I carefully researched it and the SLIGHT risk of catalytic converter being affected was FAR outweighed by the superlative protection and benefits of the near miracle additive ZINC ! The evidence that the levels of zinc in the prior formulation would actually CAUSE damage was slight to non-existent and driven more by the Auto manufacturers fear of having to warranty a catalytic converter! Now that the levels of zinc are further reduced the risk is IMHO very slight, insignificant. Not an issue and worth the minuscule risk! I recommend it and use it.
Shell Rotella T-6 has been said by many oil engineers to be truly " the finest oil in the world " - ( In an old issue of "Nines" magazine . )
->Posting last edited on Wed, 10 Apr 2019 22:50:24.
Posts in this Thread:
- Oil change, Gus, Thu, 14 Mar 2019 11:39:48
- Re: Oil change NO don't change oil W/ due to age of the motor, neil dale , Fri, 22 Mar 2019 13:30:38
- Re: 0w40 is on the thin side., Brian, Mon, 18 Mar 2019 11:15:00
- "ORIO Oil Guide", a little long, Paul from Palmyra, PA, Sat, 16 Mar 2019 13:02:18
- Re: "ORIO Oil Guide", MI-Roger , Thu, 21 Mar 2019 17:40:18
- Mobil 1 0w40 is still sold at Walmart ($25/5qt), dmz789qqq, Sun, 17 Mar 2019 09:01:46
- Now I see!, Paul from Palmyra, PA, Sun, 17 Mar 2019 13:01:14
- Re: Oil change, bobc , Fri, 15 Mar 2019 05:56:13
- Re: Oil change, Tom G , Fri, 15 Mar 2019 02:09:22
- Re: Oil change, Gene N , Thu, 14 Mar 2019 15:51:54
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