Volvo RWD 120-130 Forum

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1966 122s manual 4-speed transmission oil recommendations 120-130

posted by  EMH on  Sat Apr 30 10:51 CST 2005
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last visit: Tue Jul 13 02:36 CST 2010
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I'm getting around to basic maintenance on a 1966 122s I've inherited. I want to change out the oils. I'm curious about the manual 4-speed transmission oil recommendations in the old manual I have. I would have assummed that a hypoid 80-90 weight would be the way to go (as it seems to be for the rear end and steering box), but the Clymer manual I have says at one point that a engine lubricant is to be used (SAE 30 or SAE 20 W-40) in the transmission. Is this a misprint? Are there now standard recommendations for all (non-engine) lubrications, esp. for a manual 4-speed transmission (no overdrive)? Sorry if I an starting a dreaded "oil-thread".








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    1966 122s manual 4-speed transmission oil recommendations 120-130

    uid 4464's pic
    posted by  brettsutherland on  Sat Apr 30 14:38 CST 2005
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    last visit: Fri Apr 22 13:00 CST 2011
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    Currently running 15W40 in Ole Reliable's M41+ J type OD .... No problems

    Brett
    --
    Brett Sutherland & the 1.5 million mile 122 CANADIAN www.ecvintagevolvo.com








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    1966 122s manual 4-speed transmission oil recommendations 120-130

    uid 779's pic
    posted by  matt b on  Sat Apr 30 11:01 CST 2005
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    No need to be sorry... we all *love* tranny oil questions...

    The recommendation in the book for 30wt engine oil only applies if you have an overdrive transmission. Sounds like you don't..

    So 80 or 90wt gear oil is what you want...

    --
    -Matt I ♥ my ♂







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