[salguod]

I've seen several oil analysis at 3K-5K, but don't recall any at 7K-8K which is the range I've typically changed the oil in my cars. Have there been any at that mileage and what were the results?

 

[09XRFWDOWNER]

Hey salguod,

I'm with you. I don't think I've seen anyone braggin' they're going out 7K to 9K before changing. Frankly, with all this discussion going on in all the Lambda forums on timing chain failures AND the fact that GM has moved to change programming of the OLM, think one would be on an engine change wish to go out beyond 3K-4K miles. Still the answer to your question would be interesting to all on these Lambda forums.

I've got a suggestion, why don't you just get a UOA from Blackstone on your next change and post up.

:cheers:

Regards,

Jim
In God We Trust!

 

[salguod]

I may just do that. ;D

I've always been one to say a 3-4K interval only benefits the bottom line of the oil change shop. In most cases, going sooner than 7K doesn't do a lot of good. However, I may change my mind here.

 

[medicrxdoc]

There was some longer runs posted...give a search of bobistheoilguy.com and the other forums.

Here is a Havoline DS at 8K miles http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2010217

Penz Plat at 8380 http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=1739544&page=1

Amsoil SSO 0w-30 9K miles http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2138199

 

[salguod]

Those are all encouraging, no issues at 8K-9K. I ordered my Blackstone kit, so I'll try to send mine in when I get it changed. Wish I had done so last time with 10K on Valvoline dino oil. This time I got PP and I'm 4,500 into it mow with 30K on the vehicle.

 

[ponchonutty]

I usually go much further on Amsoil but here's a link to my results. Only reason why I didn't go to longer is that my serpentine belt fell off and the car over heated pretty badly before I could safely shut it down. I was worried about thermal breakdown of the oil and other things so I changed it soon after this happened.
http://www.bobistheoilguy.com/forum...=150061&Words=outlook&Search=true#Post2194176

 

[rbarrios]

Ive had 2 done- one at 6L and one at 12K on engine.... the oils had 5000 and 5500.
My intentions was to go to 0% OLM--- (just like I did on my Trailblazer 0% with 11,500)... BUT
once I started reading the Lambda forums and seeing other UOA- I decided that 50% OLM and about 5000 miles would be a good place to change oil and get UOA. (also running Valvoline Premium Conventional 5W-30).
As it turns out- the oil was OK at 5000.... but more degraded than 50% It appears.
Im at 4500 miles and im thinking of getting a UOA on the current batch- since I just passed 30K.