scriber17

2k interval testing isn't really helpful. I'd like to test after one of BMW's 15k oil change interval and see if that is causing any issues.

safetywork

My eyesight isn't as good as it used to be, I tried to zoom in on the document but still had trouble reading it. Does the report show viscosity? I've been following BMW's oil change intervals and was wondering if there were viscosity changes in the oil at the different miles driven? Since my car is alot older (in terms of miles) I would suspect that I no longer have issues with metal shavings.

Krozi

Yea the only reason I did a 2k change is because I want to do 5k oil changes and I was at 20k miles so it's easier lol...25k, 30k...etc

RoadTrip

I've had some Blackstone analyses done and have had some interesting results. I was doing roughly 10K between changes and had generally positive results on the oil. At the 106K miles test, the oil still had some life left after just over 10K on the oil. The test that shows how much life (additive) left in the oil is the TBN test, which costs $10 over the price of the standard test and probably worth it. I'm fairly certain that I wouldn't make it to 15K on that oil, but feel comfortable at 10K intervals. Of course that varies from car to car and driver to driver.

Krozi

I hit redline too much to justify 10k oil changes

545iBMW

Note to self. Do not buy any car owned by Krozi.
J/K

I only go up to 5K rpm once in a blue moon on my car.
I do, however, drive BMW loaners like I stole them

Krozi

Hahaha, the cars were meant to be pushed, if you baby them it does them more harm than good, just make sure the engine and everything else is warmed up and hitting redline is no big deal Cleans out the engine of carbon quite nicely, there is nothing better than the smell of clutch and exhaust combined