Oil Change Interval

[Mike Miller]

Has anyone done a Blackstone Labs oil analysis on their 200q? If so, what 
was the recommended OCI for the type of oil?

I just did one on my 2000 F350 diesel - running Shell Rotella Synthetic. The 
sample I sent had about 5500 miles on it and the report came back that 
everything was fine and I could go at least another 4-5000 miles.

On my 200q, I use Mobil1 synth and I change twice a year or about every 
12-15k miles.

--mke