My car (Chevrolet SS Sedan) specifies this in the manual for the rear differential:
I have been a big fan of Ravenol fluids for a while and they cross list their DGL and MDL oils for this GM number but only MDL for the Castrol SAF BOT 720 that has superseded the Carbon Mod.
https://www.ravenol.de/en/properties/empfehlung/gm-92184900
The SS and Pontiac G8 enthusiast forums are very convinced that the carbon mod/GM fluid has special sauce friction modifiers for our carbon based diff clutches. I’ve been told I’m going to ruin my diff. Stateside, it appears Redline and Royal Purple think you can use their fluids but AMSOIL has specifically told people to use the OE fluid.
I usually trust that the chemists at a place like Ravenol know what they’re doing when they say it meets a spec, but wanted to see if the experts here could weigh in. It literally has my spec printed on the bottle, but the volume (and volume) of comments I’ve gotten saying I’ve made a mistake make me nervous.
As a secondary question, if a fluid has multiple cross listings as in this case, is there a “best” way to choose between the two?
Cheers,
Nathan
I have been a big fan of Ravenol fluids for a while and they cross list their DGL and MDL oils for this GM number but only MDL for the Castrol SAF BOT 720 that has superseded the Carbon Mod.
https://www.ravenol.de/en/properties/empfehlung/gm-92184900
The SS and Pontiac G8 enthusiast forums are very convinced that the carbon mod/GM fluid has special sauce friction modifiers for our carbon based diff clutches. I’ve been told I’m going to ruin my diff. Stateside, it appears Redline and Royal Purple think you can use their fluids but AMSOIL has specifically told people to use the OE fluid.
I usually trust that the chemists at a place like Ravenol know what they’re doing when they say it meets a spec, but wanted to see if the experts here could weigh in. It literally has my spec printed on the bottle, but the volume (and volume) of comments I’ve gotten saying I’ve made a mistake make me nervous.
As a secondary question, if a fluid has multiple cross listings as in this case, is there a “best” way to choose between the two?
Cheers,
Nathan