» Site Navigation | | » Recent Threads | | | | | | | | 08-15-2006, 02:26 AM | #1 | Senior Member Join Date: Jul 2006 Location: CA Posts: 104 | Which differential OIL to use? Red Line? If so, what model/viscosity? I have 1995 318ti | | | 08-15-2006, 02:46 AM | #2 | Senior Member Join Date: Jun 2003 Location: Greenville, SC Posts: 9,356 | 75W90 __________________ ...steven BMW CCA #146825 1996 BMW 328ti • 2003 MINI Cooper S • 2016 M235i www.bmwcca.org | | | 08-15-2006, 02:46 AM | #3 | Senior Member Join Date: Feb 2004 Location: Port St. Johns, Florida Posts: 2,242 | LS? Redline 75W90 Our most popular gear oil, 75W90 is the preferred product in nearly all car and light truck differentials, both conventional and limited-slip, as it contains friction modifier which is recommended for limited-slip units. Our 75W90 Gear Oil is common in racing differential applications and can be used in transmissions and transaxles; however, other Red Line lubricants have better frictional properties for rapid synchronization. Exceeds API GL-5. Used in the Club Sport. | | | 08-15-2006, 03:11 AM | #4 | Senior Member Join Date: Jul 2006 Location: CA Posts: 104 | how many quarts do I need? Also, do you guys use a pump? or what do you use to let new oil in? | | | 08-15-2006, 03:48 AM | #5 | Senior Member Join Date: Aug 2004 Location: state college, pa Posts: 3,431 | Site's down, but I pretty much followed this guy's instructions: Ron Stygar The only difference is I use a suction gun to drain what's just sitting in the bottom. __________________ I scream, you scream, we all scream for ZOMBIES. | | | 08-15-2006, 03:49 AM | #6 | Senior Member Join Date: Aug 2004 Location: state college, pa Posts: 3,431 | I should also mention that Redline hypoid gear oil smells like rotten eggs. Do not do this on a hot day, and wear rubber/nitrile gloves. __________________ I scream, you scream, we all scream for ZOMBIES. | | | 08-15-2006, 05:27 AM | #7 | Senior Member Join Date: Mar 2005 Location: Portland Or Posts: 2,666 | All hypoid oil smells like that, its the HIGH sulphur and nickel content that give it the gear box aroma... Dave __________________ Dave - PDX 1995 318ti - Active Black and Tan. 2005 330xi - Mtech 1 - 6spd - Orient Blue/Black | | | 08-15-2006, 05:31 AM | #8 | Senior Member Join Date: Feb 2004 Location: Port St. Johns, Florida Posts: 2,242 | buy 2 qts. you need 1.25/1.32 for the small diff IIRC. | | | 04-12-2020, 07:27 PM | #9 | Junior Member Join Date: Apr 2015 Location: Pullman Posts: 20 | My 1995 318ti has the limited slip option - "S209A Differential lock 25%" - per the VIN lookup. Also did the rear wheel spin test and both wheels turn in the same direction. Bentley manual states that cars with LS use 75W-140 gear oil, but most forums and tutorials are saying 75W-90 since this LS doesn't have clutch packs. Any advice? | | | 04-14-2020, 03:35 AM | #10 | Senior Member Join Date: May 2013 Location: Seattle Posts: 513 | I put Amsoil 75w-140 in mine year's ago and it's been fine. | | | 04-21-2020, 04:01 AM | #11 | Junior Member Join Date: Apr 2015 Location: Pullman Posts: 20 | Thank you, Bradestar. Got the bolts off, which was surprisingly easy, but then noticed that both bolts that came out were different that OEM ones ones that I got on Pelican. Attached are a couple of photos of a new bolt compared to one that came out. New one has the o-ring and is shorter. Any thoughts? | | | 04-21-2020, 04:47 PM | #12 | Junior Member Join Date: Apr 2015 Location: Pullman Posts: 20 | Did some more research, and I think the bolts with the o-rings are a newer BMW design that superseded the bolts that use a crush washer. Ron Stygar's tutorial shows the same bolts that came off my car. Even though realOEM shows the bolts using an o-ring also have a crush washer, I don't think that would make sense. Newer BMWs whose differentials/final drive plugs have an o-ring bolt don't use washers. Also, the torque spec for o-ring bolts is less than ones that use washers (44 vs 52 ft-lb). Anyway, I'm just going to use the old bolts with new washers. The only reason I got new bolts is because I thought the old ones would have o-rings and needed replacing. Thanks for listening! Maybe this will help others who come across the same dilemma Last edited by aldogg7; 04-21-2020 at 07:34 PM. | | | | Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | | Posting Rules | You may not post new threads You may not post replies You may not post attachments You may not edit your posts HTML code is Off | | | |