2 quarts in 3500 miles....that's excessive...even for a motor with 135K on it....are you one of the once a year or 10K oil changers? and you fuel pump probably hates you are well...
What do you need for this...I guess I'll go read the thread on it
the truth is revealed...5K and tracking....wow....
No & possibly.
Starting down the rabbit hole.guess you will
It's readable...the reason it's 0 is because that's what it's supposed to be. OBDEleven works just fine and can anything VCDS can. The issue is the refresh rate for logging - yeah, that sucks donkey balls. I did some logging at the track last weekend with the Simostools...very slick. Here was mine when I was checking after my timing chain tensioner took a dump. After repair was the same. Posted on the GSW/AT FB group to capture a range from folks and they varied but mainly hovered around 0 and I seem to recall finding the range and it was *maybe* 5 to -5? to look at chain stretch/health (can't remember where I found that or maybe the shop gave me that info...
Mix away, will have no issues...really similar oils. The Molygen is just a basic 5W40 Euro oil with some tungsten added....it's actually not that great IMHO based on my testing/analysis. It shears down to a 30W more readily than the Leichlauf High Tech. That Castrol is arguably a much better oil with better base stock.
0 and 5 winter rating oils are effectively the same w/r to cold start unless you are starting it below -30F.
I changed out my stock PCV for the Audi version (S3...don't have part no. handy but in my build thread) after having some Spy Hunter smoke screen action at the track last year. It hasn't returned with the new PCV and bonus of no catch can.
I typically do 5K changes and that can include 2-days of HPDE without drama and have done UOAs since new os have actual trend data that is meaningful not just a single UOA that really doesn't tell you much. The oil/additive pack is fine/holds up but it's the fuel dilution/viscosity shearing that *can* be an issue. I've since switched over to a boutique oil by a company called High Performance Lubricants - they produce all sorts of lubricants for both racing and HD industrial applications. Great shit. PAO/ester base stock so the most you will get w/r to holding up to severe use like track. I'm not overly concerned with a few track days and 5K miles. No oil consumption at all at 90K tuned since nearly new and IS38 etc. etc. for the last few years.