Blackstone Oil Test

[pkniland]

First Blackstone test on the 4runner. Just wanted that warm fuzzy feeling about 10K change. For those of you who use Blackstone, how often do you send in samples?

 

[Hokie LX]

On my BMW 335's, I used to send oil in every 20k or so. Haven't done one on my truck yet...maybe I should. I do 5k oil changes though out of habit. Maybe they can give me peace of mind for longer intervals.

 

[S4Cruiser]

I used to do them regularly (every other oil change) but I rarely do them now, especially for the cars we lease and oil changes are comped. I should do one for my Duramax though! Thanks for the post and reminder.