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As in, have you ever heard a chemist-tribologist say "Man, we had to use all our anti-wear weapons: boron, titanium, moly, and zinc compounds to meet that tough spec! Whew! We couldn't have done it with zinc alone." We know some oils only use zinc.

Originally Posted By: MolaKule Not quite true. You do need to balance between the additives. That is why so much testing is done in the lab and in real engines. When a new PI package is being developed, testing will show what antagonistic effects and synergistic effects occur among the...

Originally Posted By: Nate1979 Umm, are you sure that Valvoline etc. only uses zinc as anti-wear additive? I mean I hope you have more data than just VOA because a VOA only detects the metallic additives. Are you sure there are no non-metallic additives that are also anti-wear additives that...

Originally Posted By: MolaKule Different additive take effect at different temperatures and pressures. QOTD Thats a true thought. Yet, isn't it all about what specs you can print on your bottle of motor oil you are trying to sell? If you can do it with only one anti-wear additive (zddp) then...

Originally Posted By: aquariuscsm Valvoline is actually one of the lowest zddp oils,right? With the SN limits on ZDDP, all the SN/GF-5/dexos1 style synthetics I see on the PQIA site have around the same amount of ZDDP. Seems formulators just take it right to the SN limit as standard practice.

Originally Posted By: Trav If any or all of those are in the blend then what does adding more of one or something completely different like MoS2 or Boron Nitride to the mix do? The point is. With an oil like Mobil 1 0w40 that meets so many specs and is good enough for some of the best...

Originally Posted By: Trav Thanks for that info Mola. If i understand this correctly oil is a carefully formulated balancing act. We were just discussing this today, we see fewer and fewer ridges in cylinders today. In fact many times we see the original cross hatch in the bores. I'm no rocket...

Of the anti-wear additives that are now being used, there are zinc, moly, boron, and titanium based chemical compounds. If you can meet all SN/GF-5/4718M/dexos1, the toughest domestic U.S. specs, with ACEA A1/A5 on top of that, only using ONE (zinc) anti-wear additive, why would you bother with...

Originally Posted By: williar The 1.8t turbo motor requires a robust ACEA A3 oil. I used GC, German-made Castrol 0w30, in my 2.7t for 100K mi with excellent results. The GC is close to a 40 wt. M1 0w40 is my second choice. I always used a German-made Mann filter, available in the USA. I bought...

Its a legitimate question to ask if the extra filtration performance, getting out stuff in the range of 2 to 15 microns, is worth getting. Why not? Until someone shows me that more particles in startup and other semi-hydrodynamic lube regimes (like the valvetrain) is better, I tend to want less...

^^^^^BMW has always been a little odd on durability and performance on some of its parts. For example, the lower front control arm fluid filled bushings on 5 series E60 suspensions frequently fail at 70,000 miles or so. Their transmissions have dumb weaknesses in them, like mechatronic sleeves...

Originally Posted By: Quattro Pete How do you define performance? It's a fine balancing act between filtration efficiency and flow. Filtration efficiency alone is not everything. With positive displacement oil pumps and the only minor differences between all oil filters that meet or exceed OEM...

Originally Posted By: Quattro Pete Originally Posted By: ElastoHydro The only clue we have about the filtration efficiency of Mahle or Mann or Hengst German oil filters is that it appears they don't use glass fibers, they use only paper cellulose media. Mann/Mahle do use synthetic fiber media...

Originally Posted By: Quattro Pete Originally Posted By: route66mike And we also know Fram and Wix publish excellent performance specs. How do you define performance? It's a fine balancing act between filtration efficiency and flow. Filtration efficiency alone is not everything. Its the use...

Originally Posted By: Dufus2 Obsessed with proving a point beyond what the OP was asking in reference to.. Good Grief Charlie Brown (Shultz) You lost all credibility from this other oil+filter thread recently. You said: Originally Posted By: Dufus2 A German built filter is better suited to...

Its a little like a motor oil. If a brand of oil doesn't tell us what specs it meets, should we use it? Fram/Wix tells us their specs. Sure all these oil filters meet a minimum filtration/pressure spec from BMW, yet we enthusiasts can do better. If we think the company is not just interested in...

Originally Posted By: kschachn Seriously? You have no idea what the specs are for the BMW/Hengst/Mann/Mahle (except that for the BMW ones they meet any performance specs the manufacturer requires), nor do you have a clear indication of the construction and what difference it makes, yet you...

Originally Posted By: Dufus2 This is a good question because I buy MANN, HENGST, MAHLE from Amazon for a decent price with a Prime membership. The WIX brand is also made in Poland for most European vehicles. I am not stating one is better than the other, only that these are not made in US...

Originally Posted By: jdeare So what's the takeaway for the non-technically inclined reader? Specifically, is the Wix 57002/Napa/Carquest filter the one to use if the OEM Mazda one is unavailable? If not, what's a better filter to use? And does it matter if it's made specifically for the...

Originally Posted By: Quattro Pete Originally Posted By: grantsburg So in this case I can't say that oil A is better in my engine than oil B ?? You really can't. There is a lot more to it... starting TBN, the rate of depletion, TAN, fuel dilution, etc... it all needs to be looked at together...