That’s because, around curves, the inside lane is the only one that’s actually 400 meters. Remember watching people run track during the Olympics? For longer races, after everyone starts out in his or her appropriate lanes, everyone clusters toward the inside lane of the track. In fact, some people go the entire lifetime of a vehicle without knowing what the differential does. It is not one of those common car parts like the transmission or radiator. Genuine BMW kit might be 2x that.Many folks do not even know what the differential does. The automatic transmission service is a special procedure with a complete replacement of fluid, pan with its built-in filter, and pan bolts. You would probably get a much lower price through a local BMW independent mechanic. IMO I don't see any upside to risking a really expensive transmission, differential, Limited Slip Differential or Transfer Case based on aftermarket fluid marketing claims, or trying to save what is a negligible amount of money compared to the replacement cost of the component that it's protecting.ĭo you mean transmission? I thought you were discussing your rear differential fluid? That's a simple suction through the filler hole and refill. But there are also horror stories about aftermarket fluids having negative results. Sure people use aftermarket fluids with no problem. That's why I use ZF fluid in my ZF designed and manufactured transmission. I'm more concerned that I use the fluid that the engineers who designed the component specified. But I do buy genuine BMW parts when necessary at a discount from retailers like FCP Euro. They are in the business to sell us new cars. BMW Corporate bean counters could care less if our cars last past the warranty. Dealers mostly parrot BMW's Lifetime Fluid claims, something designed to get BMW to the end of their legal liability. I didn't say that the "dealer knows best". I don't buy my parts at the dealer, I sure won't buy my gear fluid and engine oil from them either, but I understand if people think that the dealer knows best. My BMW race car is seeing a huge amount of abuse on non BMW fluid also. I ran non BMW fluid in many BMWs well passed 200k miles. I saved many older manual transmissions using Redline MTL where BMW fluid would have doomed them. Redline and Liqui Moly are some pretty pretty decent fluid manufacturers. So the extra LSD components must take up about a half liter of physical space, assuming the housing capacities are the same. The Bentley manual doesn't list a rear differential fluid capacity (but is says the front differential takes 600ml)īut I know that my rear M Performance Limited Slip Differential only takes 1 liter of BMW differential fluid part number 83222357992. Note: it's interesting that according to realoem, the stock rear differential for my 2015 335ix automatic takes 1.5 liters of BMW fluid part number 83222295532. Tightening torque on plug is 60 Nm (44ft-lb) It's usually a suction through the fill hole procedure. If you use another fluid then check for that. I don't believe there is an upside to believing marketing claims from fluid manufacturers.įYI- the Bentley manual says that BMW recommends only using rear differential fluid with SAF-XO designation. I'm a big believer in using BMW fluids or fluids from manufacturers who make them for BMW like ZF transmission fluid or Shell Austria Transfer Case fluid (both available from FCP Euro). Would Castrol Syntrax Longlife 75W-90 be alright for the rear diff? Its around 30EUR for 2 liters, so quite a different price. I want to change the rear diff oil in my 2015 F31, found the original oil (83222295532) on realoem, it costs a fortune (or, around 100EUR for 1.5 liters) □
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |