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Originally Posted By: ChrisW Mounted a set of these today on a Mercedes in a staggered 225/45R17 and 245/40R17 and they balance nicely; none of the assemblies needed any more than a half-once total to balance out. Overall a a nice tire from an installation standpoint, though I haven't yet driven...

Originally Posted By: jkhawaii I would change it out to get the break in metals out. I changed it last week with Rotella T

Rotella T in the white jug is what they had on sale at AutoZone (I had some gift cards) so that's what will go in this week.

Thanks guys! Highway MPG is approx 18. The regen cycles seems to kill the MPG. Seems like the OLM is following the 10% per 1000 miles. I think I'll change it this week, run another 7500 and then do a sample with TBN.

Purchased truck new in June of '12. First oil change at 2500 miles, I used delvac 1300 15w-40 and a Bosch Distance Plus oil filter. This sample was done a few weeks ago with 7300 miles on the oil/filter, 9800 miles on the truck. I did not change the oil at the time of the sample. Truck was...

Originally Posted By: INDYMAC Get an open drain pan and look for castings on the bottom. Have you cut open a filter yet? I have an open pan that I can use, I will drain today and cut the filter open. Thank you!

Originally Posted By: INDYMAC Are you still seeing casting material/chunks in the bottom of your oil drain pan? I noticed this on my daughter's 2008 Avalanche 5.3L up until 52K miles. I don't know what the service history was prior to my attention, but probably quick lube places that didn't...

No towing at all. I just drove it into work 32 miles. 20 of those miles on the interstate. Oil pressure best I can tell by the [censored] gauge, moved up to 45 or so after start. Then just below 40psi for the drive at 80mph on the interstate. Will pickup a magnetic plug.

Originally Posted By: Quattro Pete Originally Posted By: silverz06vette At approx 2k miles I changed it myself using Valvoline SynPower 5w-40 which meets BMW LL-04. Why are you running LL-04 oil in it? You should be running LL-01. However, LL-04 will work with your fairly conservative OCIs...

Originally Posted By: friendly_jacek This is not dirt as dirt has silica and aluminum. There is something mechanically wrong. Look at the lead from bearings! Any metallic particles in used oil and/or oil filters? Look under the noon sun. Closed top oil pan and the oil is gone. Filter went out...

At approx 2k miles I changed it myself using Valvoline SynPower 5w-40 which meets BMW LL-04. I have another 6 quarts left of it from an Amazon deal last year. I will change it again at 7500 miles. BMW will of course change it once a year or every 15k, so I will continue to change it at 7500...

Originally Posted By: Texan4Life I would do a 2 or 3k run, and then a 5k run and re sample. Silicon is above uni avg (maybe cuz of K&N). but not high enough to cause this wear IMO. Tho it seems from the uni avg, this engine seems to shed more metals than most hopefully it is just build up...

Originally Posted By: volk06 I would cut back to 5k oci to monitor levels until it gets under control. Should I test at 10 or 20k if doing 5k oci? TIA!

Originally Posted By: Oil Changer Sell it. Nooooo. I love this truck and need it for my detailing business. Should I consider extended GMPP warranty?

I'm sure this has nothing to do with it, but I will mention it anyway. I installed K&N air filter at 5k miles and today with 58k it received it's first cleaning. The filter was not very dirty at all.

History of OCs: 11-07 2361 M1 5w/30 M1 filter 08-08 11792 M1 5w/30 M1 filter 08-09 22097 M1 5w/30EP M1 filter 04-10 32345 M1 5w/30EP M1 Filter Sample prior oil 09-10 38208 Penz Plat 5w/30 M1 filter 10-11 47734 Penz Ultra 5w/30 Pure 1 filter 06-12 57888 G-oil 5w/30 Pure 1 filter Sample prior...

Anybody ever find another oil that meets the B spec?

Thanks Champ! Good info! I will most likely go with that filter for my first oil change.

Gary, Thanks you are correct. kokopelli, the UPF is close to the M1 filter, I hear they are both made by champion labs.

I can get 6 of the AC UPF44 for $56 shipped or maybe I should just get the M1 filter from the store for that price. Todays thought is to go with the M1-206, its a larger filter and I believe it goes down to 10 micron.