2017 Corvette / 3k / ACDelco Dexron LS 75w90

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OIL ACDelco Dexron LS 75w90

MILES IN USE 2,958

MILES 2,958

SAMPLE TAKEN 07/03/17



ALUMINUM 40

CHROMIUM 1

IRON 107

COPPER 3

LEAD 1

TIN 0

MOLYBDENUM 1

NICKEL 2

MANGANESE 7

SILVER 0

TITANIUM 0

POTASSIUM 5

BORON 56

SILICON 7

SODIUM 9

CALCIUM 11

MAGNESIUM 4

PHOSPHORUS 2299

ZINC 20

BARIUM 3



INSOLUBLES 0.2

WATER 0.0

FLASHPOINT ºF 390

SUS VIS 210ºF 73.7

cSt @ 212ºF 13.93



Chevy requires that the rear axle fluid is changed after the first competitive driving even/track day/etc, so that's what I did. They also specify that you should change it every 24 hours of this type of use which would work out to about once a year for me.

Blackstone highlighted that the aluminum was high but probably because it was part of break-in. Nothing else looks out of whack here and I'm sure it would've been fine to run for the whole year, but I would rather play it safe than deal with a denied warranty claim at some point.
 
Originally Posted By: turtlevette
Did that smell like grapes? I didn't see any Welch's in the analysis.




It did not have the typical sulfur odor I am used to from gear lube.
 
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