340 gearbox oil
340 gearbox oil
Hi guys I'm putting a new box in my car and refitting the diff etc can someone simply tell me what oil and how much to put in it? Also diff oil. I know to fill the diff until it flows out of the top plug hole (about 1.7 litres I think)
I'm only asking because I know that enthusiasts prefer to run different oil to manufacturers recommendations etc and I want optimum performance and lubrication. Thanks guys
I'm only asking because I know that enthusiasts prefer to run different oil to manufacturers recommendations etc and I want optimum performance and lubrication. Thanks guys
Re: 340 gearbox oil
Well I was told to use high grade ATF in the gearbox but I've always run 10W40 and it's been fine. Normally I get mineral oil because it's slightly cheaper. Same as the diff, make sure it's horizontal and fill it up until it starts pouring out the side plug
Re: 340 gearbox oil
I use normal diff oil in the diff, and same as speedy, 10W40 in the box itself.
Speedy88 wrote: Leave choke on, idling obnoxiously until neighbours peer out windows at the noisy exhaust
Give neighbours thumbs up
Rev engine to 7K
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Re: 340 gearbox oil
Ok cheers. How much box oil do I need to buy? And what type of viscosity diff oil do you recommend?
Re: 340 gearbox oil
Can't remember diff oil, went to halfords and it was what their system quoted. Gearbox I'd say 3 litres (guessing). I bought an oil change (5 litre) can and used that. The spare stuff I kept for the engine.
Speedy88 wrote: Leave choke on, idling obnoxiously until neighbours peer out windows at the noisy exhaust
Give neighbours thumbs up
Rev engine to 7K
Exit street sideways
Win at life.
Re: 340 gearbox oil
I think gearbox is 3 or 4 litres, diff is 1.7 litres I think. You'll need 80w90 or something close to that. Rather than going to halfords, go to GSF if there's one near you as they sell 80W90 at £15 for 4 litres.
Also go on ebay and get yourself a haynes manual, plenty of info like this in there (although it doesn't note using 10w40 in the gearbox).
Also go on ebay and get yourself a haynes manual, plenty of info like this in there (although it doesn't note using 10w40 in the gearbox).
Re: 340 gearbox oil
pretty sure it says in the handbook too
is 10w40 fine for the box? I've just gone and bourght 3L of expensive ATF stuff
is 10w40 fine for the box? I've just gone and bourght 3L of expensive ATF stuff
'88 360 +T LSD - sold
'87 760 TDI (D24TIC) - sold
'04 V40 D sport (F9Q, decat, Remapped, launch control)
'89 740 SE (b230ft, 12psi, V-cam, headwork, 'remapped', banded steels)
'86 340 DL 1.4
'87 760 TDI (D24TIC) - sold
'04 V40 D sport (F9Q, decat, Remapped, launch control)
'89 740 SE (b230ft, 12psi, V-cam, headwork, 'remapped', banded steels)
'86 340 DL 1.4
Re: 340 gearbox oil
I've had a really good chat with Mac re box oil as the green book changes over time. Orig ATF, from memory, was found to be slightly noisy so changed to 10/40. However, that gives a notchy feel to the box. Horses for courses, I know which I'd prefer
'89(G) 340 GLE B172k
'03 S60 D5 SE, '91 (J) MX5, 1954 Cyclemaster
Ex:
'89(F) 340 GL F7R (ex B172k) - Fake -> SBKV 300 Runner Up 08, 12; '91(H) 340 GL B14.4E - Kar; '88(F) 360 GLT B200E - Jet -> BKV 300 Runner Up 09; '89(G) 360 GLT B200E - Beast
'03 S60 D5 SE, '91 (J) MX5, 1954 Cyclemaster
Ex:
'89(F) 340 GL F7R (ex B172k) - Fake -> SBKV 300 Runner Up 08, 12; '91(H) 340 GL B14.4E - Kar; '88(F) 360 GLT B200E - Jet -> BKV 300 Runner Up 09; '89(G) 360 GLT B200E - Beast
Re: 340 gearbox oil
Originally the M45R was specified for use with 10w40 engine oil with an alternative of ATF for Nordic markets
(as engine oil at low temperatures was found to give "agricultural" gear change quality.)
In service however 10w40 resulted in notchy gear shifting even at "summer" temperatures so the recommendation
was changed to ATF for all markets. Ho hum - this cured the shift quality complaints but introduced moans about
gear noise (more so with the alloy cased M47R/R2).
You takes yer choice notchy or noisy - but either oil is fine lubrication wise with ATF giving the synchros a slightly
easier life. In real life, if a box is in good order, neither the "notchy" nor "noise" was real problem.
Macs choice - engine oil (but I tend to DDC anyway so synchro stick isn't an issue for me)
Mac
(as engine oil at low temperatures was found to give "agricultural" gear change quality.)
In service however 10w40 resulted in notchy gear shifting even at "summer" temperatures so the recommendation
was changed to ATF for all markets. Ho hum - this cured the shift quality complaints but introduced moans about
gear noise (more so with the alloy cased M47R/R2).
You takes yer choice notchy or noisy - but either oil is fine lubrication wise with ATF giving the synchros a slightly
easier life. In real life, if a box is in good order, neither the "notchy" nor "noise" was real problem.
Macs choice - engine oil (but I tend to DDC anyway so synchro stick isn't an issue for me)
Mac
88 5door Redline 1.7 52k - 19 XC60 Momentum Pro D4 AWD 17k
1950 pair of legs that don't work very well.
1950 pair of legs that don't work very well.