differential fluid change
Thread Starter
Instructor
Joined: Nov 2016
Posts: 144
Likes: 15
From: Austin Texas
differential fluid change
I was just researching some fluids on amazon and was looking at when my d4 ATF fluid would be coming in and for some reason i felt like i bought the incorrect fluid for my differential and checked what i got and yes I in fact did. (i don't know how i didn't notice this when i was changing the fluid) I even put it in and never noticed that i put in Royal Purple ROY01512 Synchromax synthetic CHROMAX into my differential and have been driving it since Sunday of last week!
Will this screw anything up in my differential? I plan on purchasing the 75-90w to get it out.
Will this screw anything up in my differential? I plan on purchasing the 75-90w to get it out.
Last edited by Fighta; May 25, 2018 at 09:47 AM.
Thread Starter
Instructor
Joined: Nov 2016
Posts: 144
Likes: 15
From: Austin Texas
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
People will want to debate this, but 75W90 is about the same as a 30W engine oil and the trans fluid you put in by mistakes almost the same weight. Obviously, the additive packages are totally different, so it it not a good idea to use the wrong fluid. The reason the ratings are different is because of the temperature that they are tested at. Retired at the end of 2013 from a battery company and then for fun, I went to work for a performance oil company for 3.5 years until I retired again last year.
