I do follow a few youtube car channels, and parts quality is a topic that comes up, seems like there is a general problem with declining quality. From my own experience I have not bought many parts recently, what I did was fine so far. do88.se stuff is good, very happy with the induction hoses. I u...

Did he get his software from Volvodiag? That's where I got mine and it also says 2015A, though after some tinkering I managed to get it to work with my DICE just fine. You can get the DICE drivers here: https://www.swedespeed.com/threads/dice-drivers.603001/ If using a virtual machine VIDA install, ...

That's a PFR6B plug. The 6 in the NGK reference indicates the heat range. The colder plug will be a 7 heat range, which according to the cross-compatibility charts is comparable with Denso 22 or Bosch 5, for example. That is consistent with my experience. Check the NGK catalogue and look for a compa...

The speedo on my 2001 reads about 10% faster than the actual GPS-measured speed. It's weird because AFAIR the wheels and tires currently on the car are the factory original ones according to VIDA.
I guess that makes the car seem faster, which is a good thing?

I would agree with everything you have said. Compression tests are definitely planned for the near future with new plugs ready to go in. Just time is the main limiting factor right now. No oil and coolant mix whatsoever. The oil still looks clean and the level hasn't moved in the dipstick. Will try ...

Update: 1) Did a compression test last weekend. All cylinders between 150 and 160 psi (~10 to 11 bar). Pretty happy with that, especially the consistency. 2) Spark plugs looked fine color-wise with no signs of burning anything that shouldn't be in the combustion chambers. Although they did look very...

On another note, gotta say I always chose Nissens for cooling system stuff, but starting to be quite suspicious of their quality lately. - fitted a new expansion tank + cap from them a while ago, suddenly coolant started being pushed out of the system via the brand-new Nissens cap. The pressure rele...