Recent content by Angrypenguin

Found it! https://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2082572#Post2082572 Thanks!

Originally Posted by BMWTurboDzl I don't remember a specific thread but the hypothesis was that frequent changes increased the duration in which the engine was subjected to lighter factions of the motor oil. This was one reason why people would search out oils with the lowest NOACK. Thanks...

Hi everyone, There is a thread on here where a confirmed oil engineer/scientist backed up a claim that was made that increased oil change frequency may lead to an increase in carbon buildup for GDI engines. There has been a lot of back and forth and not here to further that debate. I just...

I'm not so sure the Castrol 50800 approved oil is great for these engines. https://www.youtube.com/watch?v=LgNf5GaR73A Skip to 9:30 The Castrol approved 50800 oil has a LOT of calcium, which if this dude is to be believed, (which I think he should be given his extensive knowledge on this)...

So the way I see it, lots of conjecture but a lack of scientific tests on this topic. This is really unfortunate!!

Originally Posted by SilverFusion2010 UOA at 7000km and see how much life the oil has left The only problem with this is that by siphoning out oil and sending it off that one has to add in fresh oil after the fact, thus introducing virgin oil volatility. Does it really matter at the end of the...

Originally Posted by pitzel Originally Posted by superangrypenguin Thanks for the info. Do you have any studies you can point to which have either specifically looked at this issue or has proven this specific theory that more aggressive oil changes may lead to an increase in carbon buildup for...

Originally Posted by pitzel Originally Posted by superangrypenguin Sorry to revive an old thread. Was there ever a followup to this since 2010? Is it the position of BITOG participants that indeed halving an automaker's recommended oil change interval may in fact lead to more oil deposits? A...

Sorry to revive an old thread. Was there ever a followup to this since 2010? Is it the position of BITOG participants that indeed halving an automaker's recommended oil change interval may in fact lead to more oil deposits? A fellow participant on Rennlist directed me here, much to my surprise.

So does this oil adequately address LSPI concerns on the latest engines by VAG that require 508.00?

Originally Posted by BrandonT Even if I had the expertise, the VOA doesn't tell the whole story...but from following UOA here for years, it does seem like the ones with some Boron and Moly produce better results. For what that's worth. But it does seem a fairly consistent data point. PU with...

Originally Posted by SubieRubyRoo Then just search the PQIA site. It appears this was pulled by just going back to the 2014 tests and finding the big group test. PQIA has a tool where you can search their database by name, viscosity, whatever. There are plenty of newer 0W20s tested there since...

Originally Posted by CT8 Originally Posted by superangrypenguin I know this is dated, but this info surprised me. Holy moly NOACK! http://www.pqiamerica.com/June%202014/consolidated%200W-20.html Noack is the latest BITOG thing to post about? For me, yes, given the fact that 0W20 is the only...

I know this is dated, but this info surprised me. Holy moly NOACK! http://www.pqiamerica.com/June%202014/consolidated%200W-20.html

Or, better yet, does anyone know the NOACK limit for a VW 50800 specced oil? Eg coming from the MB world, I know that 229.5 has a 10% limit....I know close to nothing about 50800 so hoping to gain some more info if anyone has it.