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2008 Cayenne DFI Intake Valve Deposits Doug Hillary, what is your take and information on this?

Directly from the technical staff of VAG is complete acknowledgment of the FSI intake valve deposit issue, and it's impacts, including: decreased performance, misfires, catalytic converter damage ... etc. VW Patent on "Direct Injection Internal Combutstion Engine" Quote: "Gasoline engines...

Is there anyone out there that is in an area with gasoline that does not contain any form of alcohol as an oxygenate, ethanol or otherwise?

First time I've seen an oil specifically marketed for Direct Injection Intake Valve Deposits. "This next-generation engineering also offers excellent thermal stability, maximising keep clean engine performance and oxidation resistance under the most severe high temperature dirving conditions...

According to forum rule 8: Quote: Discussions of any products are allowed and encouraged, and links to Technical Data or MSDSs are allowed, provided that it follows the topic discussed. Members agree not to self-promote (either in postings or in member profiles or in user names) for personal or...

I've been posting on Audi FSI engines for some time now, and have discussed my oil analysis and issues with FSI engine fuel dilution impact on wear and deposit formation. Well, we now have confirmation of the oil-induced deposit formation issues with FSI engines. Here's a direct quote from an...

Lubricity of Reformulated & Oxygenated Gasolines (DAI Informational Document # 970301, March 1997) In the past few years there have been a number of compositional changes to gasoline to comply with the 1990 Clean Air Act Amendments (CAAA). Such changes have included wintertime oxygenated fuel...

The original posting on the RLI Super High Performance Bio-Synthetic 5W40 HD oil is here: ]Double-Super-Secret 5W-40 Audi RS4 Racing Oil Since then, quite a large number of UOAs have been performed, 80 UOAs, 20 RS4 engine, 610 to 53500 miles, 17 different Audi/VW 502/505 oils. Here is a...

How to turn a Prius into a Plug-in Hybrid Plugging Away in a Prius

Enerstar needs 2WD cars for testing You drop off your car for a day. They run a day's worth of dyno testing using using these tests: Pulstar testing In return, you get the test results and the plugs. Then you can share your results with the group. In the worst case, it's a day out of your...

One complete paper and one front page teaser. The interesting implication of these studies is that solvents remove the outer layer of the ZDTP tribofilm. I was unable to retrieve the 2nd paper to read about the structure in more detail, but, it does provide some evidence for the "fuel...

I wondering if there can be a show of hands of those: "And we have well-respected tribologists, chemists, and oil analysis professionals" that are touted on the front page of the BITOG website.

From top to bottom the samples are: RLI BioSyn 10W40 PCMO @ 1777/37442 miles on oil/miles on engine RLI BioSyn 10W40 PCMO @ 560/36224 RLI BioSyn SAE40 HD @ 9137/34429 RLI BioSyn SAE40 HD @ 6428/31719 RLI BioSyn SAE40 HD @ 3474/28765 RLI BioSyn SHP 5W40 HD @ 4065/25291 Spectrographic...

From a friends oil analysis by Dyson Analysis 2002 Nissan Sentra Samples: A. GC 0W30/LC 86,018 miles on vehicle 6141 miles on oil and filter B. RLI BioSyn HD 10W30 92,691 miles on vehicle 6673 miles on oil and filter Element A(GC/LC)/B(RLI) Iron 39/23 Copper 7/242 Tin 0/0 Lead 3/5 Chrome...

Hey Administrators, what gives with the new 1 year search range max limit?

Oil RLI Biosyn SAE 40 Iron 2 Copper 128 Tin 0 Lead 0 Chromium 0 Nickel 0 Aluminium 1 Titanium 0 Silver 0 Calcium 2558 Magnesium 11 Zinc 1688 Phosphorus 1277 Barium 0 Molybdenum 0 Antimony 211 Silicon 4 Sodium 4 Boron 1 Potassium 0 Vanadium 0 Viscosity 40C cSt 93.5 Viscosity 100C cSt 14 TAN 2.08...

Oil RLI Biosyn 5W-40 Iron 3 Copper 261 Tin 0 Lead 1 Chromium 0 Nickel 0 Aluminium 1 Titanium 0 Silver 0 Calcium 2533 Magnesium 13 Zinc 1492 Phosphorus 1527 Barium 6 Molybdenum 1 Antimony 492 Silicon 5 Sodium 7 Boron 0 Potassium 0 Vanadium 0 Viscosity 40C cSt 91.3 Viscosity 100C cSt 16.1 TAN...

Alright, since there was so much controversy, based on LAST Z's postings, now that I am back from racing at Mont Tremblant I will reply to his questions point by point. Here is a link to the complete UOA record for everyone's reference. Audi RS4 complete UOA record Here are my answers to your...

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Mobil 1 0W-40, 1150 miles @ 6400 miles total, in BMW 335i, Twin Turbo DI 3.0L I6. Another example of a fuel diluting monster. Originally posted by fastterd in European and Import Motor Oils