C7 2017 Grandsport Diff oil

[Digger John]

What diff oil is the best for C7 2017 Grandsport, and best place to buy it please.

 

[teamzr1]

Referring to your owner's manual and having a GS with the eLSD you need to use GM's recommended fluid
that meets Dexron-VI makeup

 

[Ian at Forfar]

Keith at Eurovettes will sort you out and at a fair price .

 

[Digger John]

Referring to your owner's manual and having a GS with the eLSD you need to use GM's recommended fluid
that meets Dexron-VI makeup

View attachment 25559

Thought that was for the ELSD unit and the rear diff used Dexron LS Gear oil with Limited slip friction modifier ?

 

[teamzr1]

There is the rear axle fluid (that uses ACDelco 10-4034 Dexron LS 75W-90 Gear Oil [88862624]) and
the eLSD (that uses ACDelco 10-9394 Dexron VI Automatic Transmission Fluid [88865601].

Mobil I sell both in synthetic versions,
I have used the transaxle version for years in the diff of my 99 C5 and also the Dexron ATF version in the manual tranny

 

[Digger John]

There is the rear axle fluid (that uses ACDelco 10-4034 Dexron LS 75W-90 Gear Oil [88862624]) and
the eLSD (that uses ACDelco 10-9394 Dexron VI Automatic Transmission Fluid [88865601].

Mobil I sell both in synthetic versions,
I have used the transaxle version for years in the diff of my 99 C5 and also the Dexron ATF version in the manual tranny

Have tried finding the

Mobil 1™ Syn Gear Lube LS 75W-90 no one sells it in the uk. unless u buy 20ltrs​

 

[teamzr1]

Here is a 6 quarts pack from Amazon, or they also have single quarts

Amazon.com

www.amazon.com

 

[Digger John]

Sorted thanks