Osakakev Posted June 28, 2022 Share Posted June 28, 2022 Hi, My car was imported with a non standard LSD. It's a two (maybe 3) way locking one for drifting but I use it for normal road use. As only the internals were changed no one could tell me exactly what make it was and therefore what oil I should use. I decided to get the existing oil analysed so I would know for sure. Got the results today and the said it's 75w80 but I should use 75w90.... Opie oils say the same as 75w80 is too thin. Diff is connected to ARC oil cooler if that makes a difference Just after some advice, I hoped the analysis would get the doubt out of my mind with what to use Cheers Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted June 28, 2022 Share Posted June 28, 2022 This is what I use: https://www.google.co.uk/search?source=hp&ei=7RUCXrXTCMLkgweY176ABw&q=Kaaz+diff+oil&btnK=Google+Search Quote Link to comment Share on other sites More sharing options...
Coz@TORQEN Posted June 28, 2022 Share Posted June 28, 2022 75w90 is what's recommended for the 350z. We usually use Redline: https://www.torqen.uk/nissan/350z/powertrain/fluids/381-350z-red-line-75w90-gl5-differential-fluid-57904.html Other suggestions would be OEM, KAAZ (as Alex already mentioned), Royal Purple. We have quite a few options on here: https://www.torqen.uk/194-fluids Quote Link to comment Share on other sites More sharing options...
Osakakev Posted June 28, 2022 Author Share Posted June 28, 2022 Thank you both. I don't mind what goes in as long as it's not going to damage the diff. I was going to use 350z recommend 75w90 but hesitated as diff was non standard Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted June 28, 2022 Share Posted June 28, 2022 Avoid the confusion If you have a plated LSD diff, best always to use the correct fluid even if slightly more expensive than other similar types. You want a fluid that is designed for plate type LSD's, (providing that you have a plate type LSD) reduces chatter, prolongs life, and has the characteristics of a low friction loss but at the same time provides high levels of lubrication. You really require to know what brand of LSD you actually have fitted to be able to make an informed choice of fluids. Quote Link to comment Share on other sites More sharing options...
Osakakev Posted June 28, 2022 Author Share Posted June 28, 2022 Thank you. The problem is I don't know and every place I ask don't have a clue so I thought analysing the oil would solve the problem lol Going in the assumption the previous owner in Japan knew would 75w80 be a bad choice or better stick to 75w90? The usage of the previous owner was not likely to be commuting like me (probably street drifting) so maybe that influenced decision on oil viscosity Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted June 28, 2022 Share Posted June 28, 2022 You will have to pull the diff to establish what you have I am afraid, otherwise it is a lottery. Quote Link to comment Share on other sites More sharing options...
Osakakev Posted June 28, 2022 Author Share Posted June 28, 2022 Ah ok thank you Quote Link to comment Share on other sites More sharing options...
SWoMP Posted August 5, 2022 Share Posted August 5, 2022 How often does 350Z Diff oil need changing? I cant see it on the Nissan service schedule.... Thanks. Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted August 5, 2022 Share Posted August 5, 2022 Depending on severity of usage, for normal road use I recommend every 4 years or 48,000 miles, using genuine Nissan VLSD fluids, providing you have an OEM VLSD fitted. Quote Link to comment Share on other sites More sharing options...
SWoMP Posted August 5, 2022 Share Posted August 5, 2022 Thanks Alex. I cant find the last time mine was changed!! Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted August 5, 2022 Share Posted August 5, 2022 18 minutes ago, SWoMP said: Thanks Alex. I cant find the last time mine was changed!! Then best to change the VLSD fluid and the 6 speed manual transmission fluids with fresh genuine Nissan fluids. Also add a tube of Moly to the gearbox. Quote Link to comment Share on other sites More sharing options...
SWoMP Posted August 5, 2022 Share Posted August 5, 2022 I've ordered the VLSD fluid so will be done. I know gearbox is ok as it had a full rebuild overhaul (with £1k worth of parts!) a couple of years ago, and oil was changed again last month (after 1k miles). Thanks again. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.