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Semi synthetic 75W 90 for gear box

Discussion in 'Land Rover Discovery' started by mormond, Jul 6, 2011.

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  1. mormond

    mormond New Member

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    Is semi synthetic 75W 90 oil ok for my Disco TD5 manuel gearbox.
     
  2. jamesmartin

    jamesmartin Well-Known Member

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    only use mtf or atf
     
  3. mormond

    mormond New Member

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    now i dont know what spec MTF and ATF are, but the 75 w 90 was told to me by a guy who has been working on Landies for 30 years has his own garage
     
  4. sierrafery

    sierrafery Well-Known Member

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    Dont do that m8 ... not for gearbox, maybe u misunderstood this one is for diffs and transfer box .. listen to jamesmartin... he knows what he's talking about ... (your guy maybe works just on series:rolleyes:) the R380 box is very squeamish .... MTF94 or ATF dexron III
     
  5. jamesmartin

    jamesmartin Well-Known Member

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    if i said i had my own garage and had been working a similar time would that help ,and have been reconditioning them for over 20 years atf automatic transmission fluid dexron 2 or 3 mtf94 manual transmission fluid part no stc9157 1 litre or stc9157 5 litres lr recommended both latter now recommended but will run on either ,but change yearly if long life required
     
  6. mormond

    mormond New Member

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    just been on castrol site and ATF IS 75W 90 have a look castrol uk
     
  7. sierrafery

    sierrafery Well-Known Member

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    Are u talking about ATF DEXRON III:confused:
     
  8. mormond

    mormond New Member

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    ATF in general looking at castrol site it is 75W 90
     
  9. discool

    discool Well-Known Member

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    No they dont look again it's Castrol Syntrans Multivehicle 75W-90 Fully Synthetic MTF
     
  10. sierrafery

    sierrafery Well-Known Member

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    Cos it's a transmission fluid and the diffs and the transfer box are transmission as well... Dexron IID or III which u can put in the R380 is something else....u will not be happy with the 75w90 in the gearbox....i rest my case
     
  11. discool

    discool Well-Known Member

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    Last edited: Jul 6, 2011
  12. mormond

    mormond New Member

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    I cant find that bit.
    All i want to know is 75w 90 ok for the box
     
  13. discool

    discool Well-Known Member

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    Similar to MTF94 which is 75w 80.
     
  14. imp999

    imp999 Member

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    Oil that works in gearboxes is not just down to the viscosities.
    some stuff works well with the bearings but messes up the syncromesh function.
    Some stuff works well with the syncromesh but not the bearings.
    The Good stuff is good with both.
    LR spent a lot of money with Texaco to come up with something that works.Why not use it - or a CLOSE equivalent if you have to.
     
  15. Blackdogtrucker

    Blackdogtrucker Active Member

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    you stick that crap in your box it`s gonna **** up. when it gets hot will be hell to get into gear dont do it go to landrover get the MTF94
     
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