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Oil Analysis

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Here's an analysis report for unused/virgin Pennzoil Ultra Platinum 0W-40. The oil was from a sealed quart bottle; I didn't record the batch number.

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How long does it take to get it back? Sent mine back 2 weeks ago.
 
How long does it take to get it back? Sent mine back 2 weeks ago.
Blackstone has taken 1-1/2 to 2 weeks to process the samples I've sent.

EDIT: If you have an existing account, you can see whether they received your sample via their Delivery Tracking feature.

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5,000mi rear differential fluid surprisingly looked pretty good! Not sure it’s really necessary to change for break in based off this, but as easy as it was it may be worth it for peace of mind.
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Thanks for posting your results. Despite the 'reasonable' iron and chromium content, I think it was well worth the effort to help extend the service life of the diff.
 
When you change your oil does oil life update automatically how do you do that I know it’s by sensors that measure the level and oil life left
 
When you change your oil does oil life update automatically how do you do that I know it’s by sensors that measure the level and oil life left
no, engine off, ignition on you go to the oil life screen and hold ok
 
1/8/26 had my Oil Changed at the dealership along with Tire Rotation @ ~5700 miles...All other fluids checked in axels/water wash etc topped off...$140 with Tax...No Oil Analysis.
 
1/8/26 had my Oil Changed at the dealership along with Tire Rotation @ ~5700 miles...All other fluids checked in axels/water wash etc topped off...$140 with Tax...No Oil Analysis.
You have to send your oil in and pay for an analysis. The dealership doesnt perform or offer those services.

Chris
 
The "motor oil geek" dyno tested,shear test,and turbo bearing coking test on the high end oils...I was shocked and impressed how well Pennzoil did...I was disappointed on the Hpl and Amsoil...Interesting video if you want information overload.
 
I am attempting to change my rear diff fluid at 1200 miles however the dealer cannot tell me which lubricant 75-140 or 75-90? They also stated that it needs the limited slip additive but I believe that is incorrect with an E-Locker.
If anyone has solid information please share with me.
 
I am attempting to change my rear diff fluid at 1200 miles however the dealer cannot tell me which lubricant 75-140 or 75-90? They also stated that it needs the limited slip additive but I believe that is incorrect with an E-Locker.
If anyone has solid information please share with me.
wow...

DO NOT use limited slip additive, it is not a limited slip diff

rear is 75-140
 
Only 250 RHO's in USA? Aux switch wiring leads,? I have a a scheduled date! Dealer used aftermarket oil filter What did you do to your RHO Today? 2026 RAM RHO Order/Schedule/Build Thread
Only 250 RHO's in USA? Aux switch wiring leads,? I have a a scheduled date! Dealer used aftermarket oil filter

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