Volvo RWD 120-130 Forum

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OD fluid 120-130

uid 5322's pic
posted by  alschnertz on  Wed Apr 2 10:12 CST 2008
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last visit: Fri Oct 24 10:32 CST 2014
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The gearboxes with Laylock overdrive units attached have only one fill hole. The oil is shared by both the transmission and the overdrive unit.

The early ones (M41) with the D-type overdrive had a drain plug on the transmission and a drain plug marked "drain" on the overdrive unit. Access to the overdrive filter (the transmission does not have a filter) was through a plate on the side of the overdrive.

Later gearboxes (M41) used a J-type Laylock overdrive. Similar to the D-type, but no "drain" plug, just a plate at the bottom that covered one filter as discussed elsewhere. Oil is also shared in this version.

M46 gearboxes as used in 200 & 700 series models had either a J-type or P-type overdrive.

Types of oil? That's always a hot topic with many opinions.
You probably can't go wrong with what the manufacturer recommended, but be sure to follow through with changes too.
I happen to use RedLine MTL (synthetic) in all my manual gearboxes.
--
Tom - '60 544, '68 220S, '70 145S, '86 745T, '06 Mazda MPV






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New OD fluid [120-130]
posted by  usafa2011  on Tue Apr 1 14:32 CST 2008 >


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