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It is good stuff. Lots of good stuff out there for us to choose from. I am now using M10w40 in my 2002 WRX (which cheerfully ran M1 5/30 for 100+K miles, despite subaru fan boy chicken little syndrome). Large sump certainly helps with extended intervals no doubt. Its a wee 2.7L engine yet 8...

Originally Posted By: rhhsiao What are the universal averages? under 6K miles is the average (makes sense, majority of p cars are not primary/DDs. Most folks just dealer change at a few K miles per year, only the OCD types like us use a UOA Their averages show Iron at 14, and many other...

Second run, this time over a year and a touch under 10K miles. 1y/10K is the updated OCI where as this year the manual states 2y/20K miles: guess zee german engineers got their way for one year until the service people cried waaaaaah, lost $200 oil changes Looks darn good to me, and the M1...

5/30 of course. Typo on my part. Twice. -b

Looks like I forgot the fuel line. Good eye Fuel was 1% according to Blackstone. - b

Originally Posted By: Char Baby WOW, very consistant on all 3 in each catigory. Why the shorter OCI on this one? Warranty purposes only. I have a 7/72 with Nissan which Runs to 4/2016 IIRC. They have a ridiculous 3m/3750 Schedule 1, I run 6m/7500 schedule 2. Plenty of my miles are 100m HW...

First UOA from my first diesel in the stable. BMW does 11-13K OCIs under free maintenance with Castrol SLX or Professional OE 0/30 LL04. I don't see a VoA of it but from what little i have seen its nothing remarkable. Some folks have written good things about M1 ESP thought thats tough to find...

Lower mile (6mo for warranty) winter change. Car sat for weeks at a time but got plenty of 100m runs once the salt was gone. Metals back down to normal from the elevated spot on last change. Unfortunately I only have 2 batches of PU left in my stash, so 2015 will mean either new PU or...

Originally Posted By: [RT ProjUltraZ]does this mean the 370Z likes a thicker oil? hard to imagine a fine new engine like that burning up 1.5 qts in 5K...repeatedly. How hard driven? its on the short list for my next car. what's next? maybe PP 10W-30 The 3.7VHR can consume some oil. Some...

For comparison (small sample set) the universal they list for silicon is 22, and for my 3 report (2010 Z) my average silicon is 9. My OCIs range from 6-7500mi using PU for those 3 reports. I posted my results to the form, just search if you would like to see. Yours is higher...but I don't...

Some have gravity systems where coolant flows around the snail post shut down. I'm not aware of oil pumps in common cars. Few people run their turbo super hot then just shut the car down. In the course of extreme driving you may be running 100 MPH on the highway but you get off an exit, putter...

OEM filter. They...just...work. Mail order a 10 pack and be done with it for 6 years - b 142K 2002 WRX, now M10-40 (was mostly M15/30, bit of PP 5/30) with OEM filters

Up until The F30 model there were NA I6s but in the US BMW will skew the numbering to not impact things (eg: the 335 engine is still a 3.0L, but its 'bigger' then the N5x 330 they had a few years past due to the turbo (twin N54, single N55). US consumers are so into being better then the...

Originally Posted By: jimbrewer I think it a bit unfair to accuse the poster of waste. Has Mr. Newton considered that the poster might be an oil change hobbyist? Its a hobby like any other. I hear they even have their own web site. I congratulate the poster on testing at a non-OCD OCI...

The BP engine is a tank. Most of the over a 500K+ of them out there run on normal 5/30 whatever. Biggest issue can be a stuck or noisy HLA. Many miatae when low on oil will make lots of ticking. Top it off, no more tick. Its a very talkative car. Myself I ran M1 5/30 for most of the 100K that...

Originally Posted By: Donald Yes, lead is a little high. Without the QT of makeup oil, it might have been at 17 or 18. Copper is not high, but slightly more than normal. I assume no oil cooler? Correct, stock car, no aftermarket oil cooler as I don't track. I tend to do some decent sized HW...

UOA 3 below, about as long as I will run it while under warranty (6m/7500mi). Overall looking just peachy. Lead bit higher, likely a spot. Will continue to trend but I think the TBN is fine at this OCI with this particular VQ. Thank you Pennzoil - b Code: OIL PU5w30 PU5w30...

Originally Posted By: nuffsaid Back to the fluids, why are the oil changes in the differentials on these subarus so frequent? Is it due to having such a small sump? Can synthetic gear oil be used in the diffs? I'd say its due to a MFG who is honest and isn't trying to pretend there are...

Originally Posted By: dparm Lately I'm wondering if the VQ37 really is an "oil destroyer" like some claim. Do you track the car? I assume you drive it hard (that's what it's made for). Its interesting to see people write how the VQ37 or the Subaru EJ series are destroyers of oil when there...

I have my UOA's posted in the forum: fuel dilution has not been a problem. Its not a DI engine either, just one that arguably can be a bit tough on oil if you run higher RPMs on it (and you should: its a sports car ) due to the design of its VVT system. Ester based oils will quiet the valve...