gearbox oil help

I suppose a question i should ask is, as its already got the new ATF in the box, is it ok to leave it or am i recommended to change it ASAP to MTF?????

davek0974 said:

I suppose a question i should ask is, as its already got the new ATF in the box, is it ok to leave it or am i recommended to change it ASAP to MTF?????

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It has alwas been ok, look in any D1 owners handbook ATF is what's recommended, there's always been a MTF and as far as I can make out, without any dates to go by, it's only recent that its now the recommended lubricant.

davek0974 said:

I suppose a question i should ask is, as its already got the new ATF in the box, is it ok to leave it or am i recommended to change it ASAP to MTF?????

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LAND ROVER incl. RANGE ROVER



Discovery 200, 300 Tdi Diesel
DT
1989 - 1998

Engine (DT) Edge Turbo Diesel 5W-40 (f) 6.8 MAGNATEC 10W-40 A3/B4
Manual Transmission SMX-S (e) 2.7 (b,c)
Automatic Transmission TQ-D 9.8 (b)
Differential Syntrax Universal (d) 1.7 (a) EPX 80W-90
Coolant (50%) Antifreeze (g) 11.5
Brake Fluid Response Super DOT 4

Grease Points LM Grease


a. Differentials front and rear b. Transfer box LT 230/230Q: 2.3 ltr, Syntrax Universal / EPX 80W-90. Models prior to Jan 98, Syntrax Universal c. Manual gearbox: R380 gearbox 1994 model year to Jan 98, 2.4 ltr / 2.9 ltr (without/with oil cooler), TQ-D d. Differential, < 1/98, Syntrax Universal e. Manual Transmission, <MY 1994, REFER TO TECHNICAL f. Engine oil viscosity recommendations TD5 (Storm) diesel engines and V8 petrol engines from 2002: -30°C to 35°C, 5W-30; -30°C to 40°C, 5W-40/5W-50; -20°C to 35°C, 10W-30; -20°C to 40°C, 10W-40/10W-50; 0°C to 40°C, 10W-60; refer to individual model handbook for early models g. Cooling systems. Use Antifreeze at a concentration of 50% or one part Antifreeze with one part water. Ethylene glycol antifreeze using organic acid technology inhibitors only recommended
1. Power steering (where fitted): Current models, ATF TQ DIII / TQ-D; older models, REFER TO TECHNICAL. Discovery II, Discovery III 2002, Range Rover 2002; use only recommended fluids. Fluid is dyed green and used in common reservoir with ACE system where applicable.
Engine - Miles Max 6000 Engine - Km Max 10000 Engine - Months Max 6
You'll see that the manual gearbok recommendation is smx-s (MTF oil) but the footnote (c) clearly states that for R380 box of your year TQ D is recommended which is ATF Dexron II

ATF is the correct oil

ATF is I think 5W20 and MTF is 80W90 Difference is like liquid and treacle

Still no clearer then

The way I see it

R380 upto 98 then use ATF or MTF94, R380 after 98 use MTF94 only.

Im no expert on this but from reading other threads it seems ATF was specified at first as it made for easier gear changes specially when cold.It also masked the second gear syncro problem.Problem was ATF is not great for wear in the box so LeRs solution was to then spec MTF.
I am sure there are peoples in here that have more informed opinions than me.
When I do mu R380 oil it will be with ATF + Molyslip G treatment

as a sideline - does anyone use MTF in an LT77?

pauli said:

ATF + Molyslip G treatment

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Aargh Now we've got another mix to consider :doh:

I guess i'll leave the ATF until it gets changed again, its got to be better than the crap i drained out

As a matter of interest Dave how is the Gbox ie smooth changes etc.
If all is well stick to the ATF in my humble opinion

how about a :search: - i just found this.

pauli said:

As a matter of interest Dave how is the Gbox ie smooth changes etc.
If all is well stick to the ATF in my humble opinion

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It seems ok, better, but a little baulk going from 2nd - 3rd sometimes.

As most owners do, i tend to 'baby' my landy and didnt like the thought of having oil in there that wasn't lubricating enough. Probably just me being stupid