That's a keeper!

Got the oil analysis back for the engine and rear differential for the Redeye. Everything looks good.

You have to be one of their best individual customers.

Jason

Probably! But after they accurately predicted the diesel engine in my Suburban was in the process of a catastrophic bearing failure, and the Viper's pinion bearing failure, I am definitely a believer.

It was 4 years and 10,000 miles after I had replaced the head gaskets after one blew towing my SD455 out to MCACN. Engine running fine, no noises, no symptoms. Just as ongoing maintenance I sent the sample and got the results back saying that way too much lead, tin, and copper were in the oil. That gave me time to order a brand new 6.5 diesel engine from the Humvee refit facility in Ohio, have it delivered and then installed it myself in the driveway in July of 2017. We then went on our planned vacation trip in the Suburban and it performed flawlessly up to Maine and back. When we got back I autopsied the original engine and all the bearings were flaking from the antifreeze contaminated oil that occurred during the original head gasket incident. And an added bonus was finding that all the main webs were cracked (a common 6.5 malady). Can you imagine having a diesel failure during a cross country family vacation? Just getting it towed back home would have been half the cost of the new engine, not to mention the entire lost vacation cost!

And just earlier this year the diff oil sample from my Viper said I had 50 times more iron in the oil than should be there. Impossible, I said! Until I pulled it and had the machine shop inspect the unit. Turned out the pinion bearing was in the process of devouring itself. Here's the comparison of the rollers. Notice the "slight" size difference between them? The only symptom was a strange "tinkling" sound when I drained the fluid and rotated the gears. Turns out that was the sound of each roller falling to the opposite side of the bearing cage as it rotated.

Here's the 6.5 bearings, cracked block and the Viper pinion bearing:

I used a service for the oil in my 1992 Caterpillar 3406 for years. It was the last year of mechanical injectors and they were famous for an internal seal to leak fuel into the oil and thin it, along with head gaskets and liner o-rings leaking coolant over time. Invaluable information to detect impending issues and take corrective action.

Cant argue with their findings on that 6.5, really saved you 10 fold!!! And the Viper diff!

I've been on a vacation as a kid where we had a water pump pulley break on the interstate.. very tense.. I never want to put mine thru that.

Great information Steve. I'll have to start using Blackstone moving forward.

It does get addictive. They send you a sixpack of free sample kits. And they pay the return postage too. All you pay is the $35 testing fee.

Belated Father's Day gift finally arrived, from my son. He got me a Lego Hellcat and we built it together yesterday.