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cornish rattler

Member Since: 31 Aug 2013
Location: Manchester
Posts: 642

1988 Defender 90 200 Tdi CSW Bronze Green

Semi Synthetic 15/40's engine oil in gearbox

Hi guys

Again got talking to a wagon driver at work yesterday about landies as he owns a 300tdi disco and got talking about my gearbox just starting to crunch in gear when going into secon'd gear and i know his gearbox is different to mine but he said he runs his gearbox on 15/40's semi synthetic engine oil and just wondered if I can run my gearbox on the same oil

1988 90 2.5td ( 200tdi ) with L77 gearbox

Graham

1988 Defender 90 county 200tdi ( Beast )

Paul Walker 1973-2013
( I Almost Had You )

30th Jun 2014 7:22am

munch90

Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

if you put a bit thicker oil which engine oil would be it will be a real pig to get 2nd gear when cold ,
think yours would use atf in the box , I would try one of the modern thin gear oils , mtf94 maybe

30th Jun 2014 8:27am

shaggydog

Member Since: 12 Aug 2012
Location: Kent
Posts: 3347

1991 Defender 110 200 Tdi USW Arles Blue

Use MTF94.

The Haynes book of suggestions advise ATF but as I found out it runs too hot and boils in the box.

Land Rover found that out too and worked with oil companies to make MTF94 (or so I'm told) and from about 1990 onwards only used MTF94 in there boxes.

The crunching is going into second is due to warn syncromesh gears which is common for your box.

Changing to MTF94 will improve it, take your time with gear shifts to allow the syncro to work will help. Unfortunately it will only ultimately be cured by a gearbox change/rebuild.

30th Jun 2014 5:09pm

cornish rattler

Member Since: 31 Aug 2013
Location: Manchester
Posts: 642

Yeah i may look into a recon'd box at a later date.

where is the best place to buy this oil you specify

Graham

1988 Defender 90 county 200tdi ( Beast )

Paul Walker 1973-2013
( I Almost Had You )

1st Jul 2014 11:57pm

shaggydog

Member Since: 12 Aug 2012
Location: Kent
Posts: 3347

Give opieoils - site sponsor a ring they will probably have it on the shelf and give you a forum discount.

Last batch I got was from ebay, think its was £9 a litre. From memory needed 4 litres as you always spill some and then you have some spare for topping up

2nd Jul 2014 5:35pm

cornish rattler

Member Since: 31 Aug 2013
Location: Manchester
Posts: 642

Nice one shaggy i will buy some but it mite be after billing now so will keep the speed down abit to help the gearbox as i only changed the oil ( A.T.F. ) last month

Graham

1988 Defender 90 county 200tdi ( Beast )

Paul Walker 1973-2013
( I Almost Had You )

2nd Jul 2014 11:28pm

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