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Ask Mobil Archive -
Limited Slip Gear Lubricants
DateQuestionAnswer
03/06/2012
Using Limited Slip Gear Lube in a Conventional Differential
Mobil Delvac Synthetic Gear Oil 75W-90 is approved for MB 235.8 specification. Can I use Mobil 1 Synthetic Gear Lube LS 75W-90 instead? The reason why I ask is I couldn't find the Mobil Delvac at any ...
It depends on what your owner’s manual recommends for this application. If an API GL-5 gear oil is recommended, either product can be used. If gear oil approved for MB235.8 only is required, then only...
07/30/2010
What are Friction Modifiers?
Please explain what Friction Modifiers means? Example: Mobil 1 Synthetic Gear Lube LS 75W-90. So LS means it has more Friction Modifiers. Does "Friction Modifiers" mean it has more slippery for LSD's ...
Friction modifiers are designed to do what the name implies, they modify friction. In the case of a Limited Slip Differential (LSD), the friction modifiers are designed to modify the friction characte...
07/26/2009
Gear Lube to Use in a Newer Corvette
Does Mobil 1 Synthetic Gear Lube LS 75W-90 meet GM spec #88862624 for Dexron LS 75W-90? Will its use in my C6 2008 Corvette void its warranty?
No, it does not meet this spec. The GM spec product is designed with a very specific level of limited slip (LS) additive to provide optimum performance for that particular vehicle. Having said that,Mo...
07/06/2009
Will Gear Lube Viscosity Difference Cause Problems?
My vehicle is a 1997 Toyota Supra non-turbo and the replacement for differential oil says that I need Hypoid GL-5 SAE 90 gear oil for temperature above 18°F or 0°C. It says that GL-5 80W-90 is ok but ...
The sales person made a great recommendation.  Mobil 1 Synthetic Gear Lube LS 75W-90 is an excellent choice. It will still provide the right operating viscometrics since it is an SAE 90 grade at tempe...
02/18/2009
Which Gear Oil Brand is Best for Porsches with Limited Slip Transaxles?
For Porsches with limited slip transaxles, I've heard that Mobil 1 Synthetic Gear Lube LS 75W-90 is too slippery for the synchros and that Mobil Delvac Synthetic Gear Oil 75W-90 is the preferred lube....
Mobil 1™ Synthetic Gear Lube LS is specifically designed for limited slip differentials. It contains a nominal amount of friction modifier to satisfy the needs of many applications. Mobil Delvac™ Synt...
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