Is DEXRON LS 75W-90 synthetic ?

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331
Location
UNION CITY, TN
Does anyone know for sure (one way or another) if DEXRON LS 75W-90 Gear Lube is synthetic, semi-syn or dino base gear lube ? The GM / AC-DELCO bottle it comes in does not say it is or isn't , but it does say it is on their 75W-90 Synthetic Gear Lube. Just need to know for 100% certainty.
 
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6,990
Location
Everett, Washington
Dexron is normally reserved for the GM auto trans fluid. Normally if something is a partial syn or full syn fluid any bottle will tout it as such. I would think it's just a non syn is my guess.
 

MolaKule

Staff member
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21,915
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Iowegia - USA
If it is GM part number 88862624 (DEXRON LS GEAR OIL 75W-90) it is a Limited Slip Differential lube made by PetroCanada and has GroupII and III base oils.
 
Last edited:

VQ35DE

Thread starter
Messages
331
Location
UNION CITY, TN
Originally Posted By: MolaKule
If it is GM part number 88862624 (DEXRON LS GEAR OIL 75W-90) it is a Limited Slip Differential lube made by PetroCanada and has GroupII and III base oils.
That is the part# , so it is not synthetic ?
 

VQ35DE

Thread starter
Messages
331
Location
UNION CITY, TN
I emailed them and got this : Hi Brad, Thank you for submitting your question to the Petro-Canada Lubricants website. Dexron LS Gear Oil 75W-90 is a synthetic extreme pressure automotive axle lubricant with limited slip top treat package. It is formulated for GM Axle Service Fill applications. I hope that helps. Regards, Michael Kaufman Technical Services Advisor Petro-Canada Lubricants Inc. Tel 1-888-877-6522 [email protected] http://lubricants.petro-canada.ca/ Suncor Energy is the proud owner of Petro-Canada
 

VQ35DE

Thread starter
Messages
331
Location
UNION CITY, TN
I asked for some clarification and got this email reply : Hi Brad, Yes. Dexron LS Gear Oil 75W-90 is fully synthetic. Please do not hesitate to contact me if you have any further questions. Regards, Michael Kaufman Technical Services Advisor Petro-Canada Lubricants Inc. Tel 1-888-877-6522
 
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