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Just saw this post - thought I'd throw in my experience with my Amsoil BP filter. I have an 05 VW GTI (bought new) with 1.8 Turbo. Must use synthetic because of the snotting issues if you use mineral oil. I have used Pentosin Hi Perf II 5W-40 once the car came off the free maintenance (and...

It does seem low but the decline in TBN seems to be rather moderate --> 2005 VW GTI 8047 90032 miles

API SM/CF ACEA A3/B3/B4/C3 BMW Longlife-04 Ford WSS-M2C917-A MB-Approval 229.51 Porsche A40 VW Specification 502.00/505.00/505.01

Last oil change and sampling was done on a cool engine while the previous ones were all done on a hot engine - I was trying to see if the engine temp had an effect on fuel% results. Next sample will be hot again.

Thanks - although still not sure if it is - it's certainly not marketed as such.

[/img] Just some data for trending with Pentosin HiPerf 5w-40 in a turbocharged 4 cylinder. Driving mostly highway - not too aggressively.

Originally Posted By: Quattro Pete Thanks! Is this a mid-SAPs oil? Not sure what you mean by SAP? Please advise.

[/img] I couldn't find this one listed in the Search so I uploaded the one I had done for use in tracking my own cars UOA.