EFA Posted August 29, 2012 Share Posted August 29, 2012 What's the current thinking??? Link to comment Share on other sites More sharing options...
Mark w Posted August 29, 2012 Share Posted August 29, 2012 The old ford red stuff If you can get it .......... Link to comment Share on other sites More sharing options...
patneale Posted August 29, 2012 Share Posted August 29, 2012 My manual says Caterham gearbox oil GL 4 grade... 5 and 6 speed. Under no circumstances use GL5 grade oil. I used Castrol and due to a very tight 1st and 2nd change added a PTFE based gearbox additive. IT was less tight, but was never really easy until 30,000 miles. Now at 45,000 miles it is very good even from cold as you could ever wish. Finger tip light. Link to comment Share on other sites More sharing options...
Mike Eamer Posted August 29, 2012 Share Posted August 29, 2012 i went from the stock catehram supplied oil I assume (car had 4k miles on it) to Redline MTL and it was a lot slicker and changed a lot faster. Now at 15k miles and its better still! Link to comment Share on other sites More sharing options...
Leadership Team SLR No.77 Posted August 29, 2012 Leadership Team Share Posted August 29, 2012 +1 for Redline MTL. Stu. Link to comment Share on other sites More sharing options...
Area Representative Paul Richards Posted August 29, 2012 Area Representative Share Posted August 29, 2012 Redline MTL from Opie Oils Link to comment Share on other sites More sharing options...
I reply to every thread Posted August 29, 2012 Share Posted August 29, 2012 You need leaves in it as well Link to comment Share on other sites More sharing options...
Johnty Lyons Posted August 29, 2012 Share Posted August 29, 2012 Redline MTL. Link to comment Share on other sites More sharing options...
EFA Posted August 29, 2012 Author Share Posted August 29, 2012 Matthew, How many leaves per litre and should they be evergreen even though I won't use the car in winter? Also do you know where the gearbox wiring earths? Link to comment Share on other sites More sharing options...
rgrigsby Posted August 29, 2012 Share Posted August 29, 2012 Lots of people use Redline MTL but Brian @ BGH hates the stuff, they recommend a Comma GL4 SX75w90 oil. This is the stuff I run in my BGH 5 speed and it seems to work well. Edited by - rgrigsby on 29 Aug 2012 21:02:09 Link to comment Share on other sites More sharing options...
Leadership Team SLR No.77 Posted August 30, 2012 Leadership Team Share Posted August 30, 2012 There'll plenty of us who've swapped from the o/e oil (assummed Comma) to Redline MTL and the stated benefit has usually been a smoother gearchange, but does anyone have experience going back? ie. swap from MTL to Comma GL4 SX75w90? Any gains? My 6 speed has MTL and the changes are very easy and precise, but compared to my old 5 speed there are negatives that I've always assumed to be related to the box itself - mainly the fact that it's noisier than my old 5 speed and particularly so in 4th gear (which is the straight through gear) where it seems to exagerate the whole gearbox/diff whine. I know that the noise in 4th is quite common amongst 6 speed boxes. Is MTL a benefit to newer/tighter 6 speed boxes whereas when the box becomes more worn would going back to GL4 SX75w90 benefit the box whithout being detrimental to the gear change? I'm always open to new suggestions and if a respected rebuilder like BGH hate the stuff I'm going to listen! Stu. Link to comment Share on other sites More sharing options...
Support Team Shaun_E Posted August 30, 2012 Support Team Share Posted August 30, 2012 Another well known gearbox re-builder no longer recommends Redline MTL. I can't remember exactly why but I think there was a suspected issue with damage/wear to certain components due to the acidity of the oil - something like that anyway. I've gone back to the Caterham supplied gearbox oil or the Halfords equivalent. The change can be a little reluctant when cold but once warmed up it is fine. I have a stronger detent spring fitted to help with the change from 2nd to 3rd which is always the tricky one when competing. Link to comment Share on other sites More sharing options...
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