Gridgway Posted September 11, 2021 Share Posted September 11, 2021 The owners manual I have says EP80 for the box and EP90 for the axle. It seems though that these daysthe gear oils are multi-grade 80w90.What are the right oils please? Sorry for the repeat question as I am sure it will have come up before! Link to comment Share on other sites More sharing options...
Tazio Posted September 11, 2021 Share Posted September 11, 2021 I put Redline MTL in my 4 speed, and some of Road and Race Transmissions special brew (80W-90 GL5) in the rear axle, after I put my quaife atb in it, and on their advice, and from all the info on Ital axles, overfilled it by quite a bit.Alan Link to comment Share on other sites More sharing options...
rkeywood Posted September 13, 2021 Share Posted September 13, 2021 I've always used regular 80 mineral oil in the gearbox, as original spec, for road and race - Castrol EP or Transmax are readily available. An 80w90 is a lot more viscous than an 80 mineral so probably not a good choice for the box. I used 90 mineral when I had an Ital diff but only for a couple of years before swapping to a Quaife ATB. I've used various oils in that, currently it's Fuchs Titan Race Syn 5 75w90 which Quaife recommended.Robert Link to comment Share on other sites More sharing options...
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