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Anyone using Renewable Lube 75w90 for severe duty? #4813503
07/13/18 07:36 PM
07/13/18 07:36 PM
Joined: Apr 2010
Posts: 13,537
Chicago, IL
dparm Offline OP
dparm  Offline OP
Joined: Apr 2010
Posts: 13,537
Chicago, IL
My Corvette will be due up for a rear differential fluid change pretty soon. GM recommends it every 24 hours of track use. OEM fluid is an 75w90 GL5 LS.

I've had my eye on Renewable Lube Bio-SynXtra GL-5 LS but am not seeing many UOAs or info on here for people using it for "severe duty". It has an impressive VI (187) and their engine oils seem quite stout, so I figured their gear lubes are probably a good buy too.

Otherwise my thought was to run Motul Gear 300 LS. It worked quite well in my Audis and is also a stout formula.


2017 Chevrolet Corvette Grand Sport
Re: Anyone using Renewable Lube 75w90 for severe duty? [Re: dparm] #4813512
07/13/18 07:55 PM
07/13/18 07:55 PM
Joined: Jun 2002
Posts: 19,486
Iowegia - USA
MolaKule Offline
MolaKule  Offline
Joined: Jun 2002
Posts: 19,486
Iowegia - USA

Quote:
Otherwise my thought was to run Motul Gear 300 LS. It worked quite well in my Audis and is also a stout formula.


I see no advantages of using Renewable Lube over the Motul Gear.


"Molon Labe" (Greek, King Leonidas to the Persians regarding their weapons "Come and Take Them!").
Re: Anyone using Renewable Lube 75w90 for severe duty? [Re: MolaKule] #4813525
07/13/18 08:08 PM
07/13/18 08:08 PM
Joined: Apr 2010
Posts: 13,537
Chicago, IL
dparm Offline OP
dparm  Offline OP
Joined: Apr 2010
Posts: 13,537
Chicago, IL
Originally Posted By: MolaKule

Quote:
Otherwise my thought was to run Motul Gear 300 LS. It worked quite well in my Audis and is also a stout formula.


I see no advantages of using Renewable Lube over the Motul Gear.



Cheaper: $12 vs $25
Easier to get: Amazon Prime vs online retailers with S/H charges
More impressive VI: 187 vs 161

Is there anything about RLI that causes you hesitation for heavy-duty use?


2017 Chevrolet Corvette Grand Sport

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