There has been quite a bit of discussion about MTL here in past years here, and an inordinate number of manual transaxle failures have been reported after switching to MTL. I'm one victim and am $3k poorer as a result. Rather than get into it again here, I'd recommend that anyone planning on switching to MTL check the archives and ponder accordingly.

FWIW, I emailed Redline a year or so ago about this perceived incompatibility, providing the evidence I had compiled, and they all but agreed, suggesting that a heavier fluid might be a better choice in the 9K transaxle. Townsend Imports has also documented problems with MTL.

Keep in mind that MTL is a hypoid gear oil and the Saab transaxle has no hypoid gears. I am running Saab-brand synthetic fluid, so far with excellent results, but in its absence I'd never use anything other than 10w30 or 10w40 fossil oil, as recommended in the manual.

• Type of Oil for 97 aero, GC, Tue, 5 Jun 2001 13:22:35
  • Re: Type of Oil for 97 aero, Black Blur 9000, Wed, 6 Jun 2001 19:03:50
    • MTL, again, Robert Davis, Thu, 7 Jun 2001 00:28:23 <-- Viewing This Message
      • Re: MTL, again, Wayne Edwards, Fri, 17 May 2002 12:11:32
  • Re: Type of Oil for 97 aero, GC, Wed, 6 Jun 2001 12:53:01
    • Viscosity, Robert Davis, Thu, 7 Jun 2001 00:18:00
      • Re: Viscosity, ls, Thu, 7 Jun 2001 11:13:15
    • Re: Type of Oil for 97 aero, Dick in Falls Church, Wed, 6 Jun 2001 15:28:14
  • Re: Type of Oil for 97 aero, Dick in Falls Church, Tue, 5 Jun 2001 22:22:30
  • Re: Type of Oil for 97 aero, Robert Davis, Tue, 5 Jun 2001 21:27:21
    • In WA state, you can get Amsoil at G.I. Joes auto parts n/m, Aaron Gilbert, Wed, 6 Jun 2001 18:03:13
    • Saab Turbo Oil 5w30, ls, Tue, 5 Jun 2001 23:47:13
      • I use Saab Turbo Oil and Saab Filters. Good stuff., SaxMaster2112, Fri, 8 Jun 2001 12:49:26
      • Re: Saab Turbo Oil 5w30, Robert Davis, Wed, 6 Jun 2001 23:59:44
        • Robert, I don't know if this is what you're looking for as far as, Shahn, Thu, 7 Jun 2001 03:56:07
  • Re: Type of Oil for 97 aero, Ajay, Tue, 5 Jun 2001 14:53:08
  • Re: Well any good oil will work, it is just an engine., aero guy, Tue, 5 Jun 2001 14:04:28
  • Re: Type of Oil for 97 aero, SaxMaster 2112, Tue, 5 Jun 2001 13:51:45

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