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Vehicle has 15K miles. Majority of its use is a daily highway commute of about 18 miles each way, along with some suburban use. TBN of this oil starts at 5.8 according to a VOA done by another member here recently, which is typical of VW 504/507 oils. Also, there may be a little M1 ESP 5W30 in...

I am trying to wade through the morass of information on valve deposits and oil choices for this engine (the newer TFSI, not the FSI) to pick an oil for use when my new vehicle gets to its first change at 5K miles. What I've concluded thus far is: 1. The TFSI may be an improvement over the FSI...

I've searched here and on a host of other boards, but I'm looking for some independent input on the chemistry of this additive. Specifically, is it really any different than Militec or other halogenated hydrocarbons? Does its acid scavenging chemistry work? Is this acid scavenging really...

Oil Brand/Weight : M1 0w-40 Type Equipment : VW Jetta 1.8L T Miles/Hours on oil : 6004 Total Miles/Hours : 55451 Results ppm/% Comments (blank=normal) Wear Copper 3 Iron 14 5w-30 SS showed slightly lower wear rate Chromium 0 Lead 0 Aluminum 2 Silicon 9 Airfilter works well still. Tin 0...

There is a thread on another board where we are discussing the possibility that the use of XW30 oil could be causing Borg-Warner KKK04-1 and KKK04-15 turbos to fail, due to rotordynamic instability caused by thin oil. The shafts on these turbos are supported by a pressurized oil film inside a...

Results are from a 2000 VW Jetta 1.8 Turbo. Modifications include performance chip, full exhaust, cold air intake w/cone filter. Miles on both samples were about the same (about 4100 for the TS, 4200 for the Supersyn) as were driving conditions (hot highway driving). Results tri-syn 5w-30...

Here are results from Dyson Analysis. Car is a 2000 VW Jetta 1.8T, GIAC performance chip (runs about twice the stock boost pressure), full 3" exhaust, and an aftermarket cold air intake with a K&N-type cone filter inside the bumper. A few other mods not worth mentioning. Spark plugs are Autolite...