MTF 94 Gear Oil ???
Discussion
I am planing a gearbox oil change sometime soon when I put the Wedge up on the ramps for an engine oil service. My car is the 400SE so I'm asuming it has the LT77 gearbox. I know people have been recomending Mobil 1 and Moly, but in my garage I have two brand new litres of MTF 94. I believe this is similar oil to atf with additives, as it seems quite thin, and some people say it's the recomended oil for this box. Should I use these as it'll be shame to waste them, or can it be harmful to this type of gearbox??? My gearbox has no issues at the moment. Also, what's the gearbox capacity? I know this has been asked a milion times but.....
Tony. TCB.
Tony. TCB.
I think before I drop mine off the stands (at last) at weekend, I will go down the mobil 1 and moly route as it is substantially cheaper than the difflock option I was also considering and the mob/moly option seems to be well recommended on here.
One question though is why Mobil 1? would most synthetic engine oils and moly work the same?
One question though is why Mobil 1? would most synthetic engine oils and moly work the same?
Difflock oil for the LT77. http://www.difflock.com/evolution1
Much improved gear change and absolutely perfect on track use, which wasnt the case with whatever TVR specialists put in the Roverbox.
Much improved gear change and absolutely perfect on track use, which wasnt the case with whatever TVR specialists put in the Roverbox.
Drained mine off last night, haven't measured it yet but certainly doesn't look more than 2 litre.
However I did get this lot attached to the plug! and this was supposedly changed on a service last year and not much over 1000 miles done. (more will be done this year)
Now I am glad I dropped it.
However I did get this lot attached to the plug! and this was supposedly changed on a service last year and not much over 1000 miles done. (more will be done this year)
Now I am glad I dropped it.
That's what the magnetic bit is for! There may be some other sludge settled on the gearbox floor, I think only the white spirit+ATF flushout will clear this in situ.
As far as 0W40 yes other ones might work but at your own risk (well OK so is the Mobil but at least 4 or 5 people have tried it and have put some miles on the box with no ill effects so far.)
As far as 0W40 yes other ones might work but at your own risk (well OK so is the Mobil but at least 4 or 5 people have tried it and have put some miles on the box with no ill effects so far.)
I changed my engine oil and filter today as the weather was good and I could work in the driveway. Using my self designed continental style ramps, I had excellent access. I put a large bucket under the car to catch the old oil and didn't splill a drop. The oil filter was a pig to shift as it was well stuck on and was a challenge even for my belt filter removal tool which has never let me down. The filter casing buckled and collapsed under the pressure to undo. I remember one time when it was so stuck on, I had to drive a screw driver through it to make it turn. lucky this one soon shifted after a lot of struggle. While I was under there, I checked accessibility to the gearbox drain and fill plugs. It's doable, but I didn't have time today, so I will tackle that job another day. I will probably use the MTF 94 I have in the garage as some people tell me it can work wonders on the gearbox, and as I already have a couple of litres in the garage, I think it will be enough to tackle this job. If it's not enough, I could always dash out and buy another litre.
Tony. TCB.
Tony. TCB.
If you read up about MTF 94 it already has additives in it. It was recomended to me for another car I used to own and was told that this is the utimate oil for these type of gearboxes. I sold the car before I got round to fitting it and was so left with these two litres of of MTF 94. I am about to find out how good it really is.
Tony. TCB.
Tony. TCB.
I should think that the MTF 94 should be fine...I think that Rover used the ATF due to people moaning about the gearbox being stiff on cold mornings..When i used to work in motor factors years ago we always supplied MTF for manual and ATF for Auto...I think the ATF might also be the guilty party in the oil leak from the top seal of the gearbox..Mine leaks a tad onto the exhaust so i always get a whiff when the engine is warming up..
What engine oil viscosity did you use Tony...I might go for something like a 15/50W or 10/50W...Hopefully be doing that soon....
What engine oil viscosity did you use Tony...I might go for something like a 15/50W or 10/50W...Hopefully be doing that soon....
MTF 94 is the correct oil for Rover PG1 gearbox, used in many fwd Rovers as well as the early Elises. It is designed to be used where a lower viscosity is required. The recommendation for that box is to use engine oil only as a top up if no mtf 94 is available.
If I had known about it at the time I would have tried it when I had a 400SE.
I am using a fancy Amsoil version in my kit car at the moment.
If I had known about it at the time I would have tried it when I had a 400SE.
I am using a fancy Amsoil version in my kit car at the moment.
mrzigazaga said:
What engine oil viscosity did you use Tony...I might go for something like a 15/50W or 10/50W...Hopefully be doing that soon....
I used what I always use. 20W50 oil and 450ml STP oil treatment. I know you don't like using additives and neither do I, but STP is the only exception, as it increases viscosity and ads ZDP to the oil thus increasing its quality. It is not a dodgy additive for worn out engines. The secret of course is to change the oil regularly, say every 3000 miles.In my opinion most other oils are too thin for these engines. These 80's 90's engines were designed for 20W 50.
Tony.TCB.
'50's engines, dontcha mean?
The proof of the pudding with this MTF oil (apart from the box not falling to bits inside) will be:
- On a really cold morning is there any crunching when cold?
- When really hot after a long run does it still change smoothly?
Mobil 1 scores well on both points.
The proof of the pudding with this MTF oil (apart from the box not falling to bits inside) will be:
- On a really cold morning is there any crunching when cold?
- When really hot after a long run does it still change smoothly?
Mobil 1 scores well on both points.
adam quantrill said:
The proof of the pudding with this MTF oil (apart from the box not falling to bits inside) will be:
- On a really cold morning is there any crunching when cold?
- When really hot after a long run does it still change smoothly?
Mobil 1 scores well on both points.
Ahhh. I fogot to mention, that what I have in my garage is no ordinary MTF. It is in actual fact by 'Silverhook' MTF 94 which is a fully sinthetic oil with additives. This could turn out to be far superior to the Mobil 1 and Moly combo. We'll soon find out if you watch this space.- On a really cold morning is there any crunching when cold?
- When really hot after a long run does it still change smoothly?
Mobil 1 scores well on both points.
Tony. TCB.
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