Kelsey

Based on the analysis lower levels of Calcium I wonder if this original fill was the C40 Mobil-1 ESP X3? Thanks

Kelsey

Based on the analysis lower levels of Calcium I wonder if this original fill was the C40 Mobil-1 ESP X3? Thanks

Greg D.

I'm doing this next time to all my cars, I got the kits ready. The blackstone guy who gets my 1973 BMW sample is gonna $hit a brick - there's probably more gas than oil in there ;-) it'll be a fun read !
"don't smoke next to that oil sample if you wanna keep your eyebrows" - "your engine has more metal shavings than a drill bit" - can't wait !

981KMAN

I think you are correct. Based on the Calcium in the 1500 - 1700 ppm range AND the Molybdenum in the 70 ppm range, this is clearly C40 oil and NOT A40 oil. So the factory fill was C40.