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#4813503 - 07/13/18 08:36 PM Anyone using Renewable Lube 75w90 for severe duty?
dparm Offline


Registered: 04/19/10
Posts: 13513
Loc: 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.
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#4813512 - 07/13/18 08:55 PM Re: Anyone using Renewable Lube 75w90 for severe duty? [Re: dparm]
MolaKule Offline


Registered: 06/05/02
Posts: 19133
Loc: 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.

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#4813525 - 07/13/18 09:08 PM Re: Anyone using Renewable Lube 75w90 for severe duty? [Re: MolaKule]
dparm Offline


Registered: 04/19/10
Posts: 13513
Loc: 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?
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