MJB_LEX

This is a summary of oil analysis from a 2006 4GR-FSE (IS 250). It was performed by Blackstone. The car has seen a change in use over the past year from a 35 mile per day interstate commute to a 2 mile per day intense Chicago downtown traffic commute. The annual mileage went from 15K/year to less than 5K. The oil was in the car for a year on the last one versus 4 months for all others. Look at the spike in Iron. Despite being the shortest distance (4,320), it has the highest ppm Fe. Copper also ticked up a little and Tin made its debut in this engine. Also, for the second time, the oil sheared out of viscosity, I don't know if this is relavent. When I changed the oil, I put Pennsoil Ultra 5W-20 in this time. Blackstone suggested that the additional iron wear is coming from increased upper end wear, possibly due to racing. I don't race in this car, and I don't even drive it hard, I commute, that's it. I get my fun by driving the **** out of my chipped GTI on the weekend and the iron numbers are not even this high. Any advice or insight would be appreciated. I extended the warranty, but I can't take it to the dealer and complain of increased iron wear.


Mobil 1, Mobil 1, Mobil 1, AMS Oil, AMS Oil
0W-30, 0W-30, 0W-30, 0W-30, 0W-30
Oil miles 4,320 5,119 5,462 4,670 5,188
Engine miles 54,263 39,752 34,290 29,608

Aluminum 9, 5, 4, 5, 4
Chromium 1, 1, 1, 0, 1
Iron 33, 17, 13, 10, 10
Copper 3, 2, 1, 1, 2
Lead 0, 0, 0, 0, 0
Tin 2, 0, 0, 0, 0
ppm Fe 7.64, 3.32, 2.38, 2.14, 1.93
per 1K miles

SUS@210 ºF 53.1, 56.4, 54.0, 55.0, 56.8
cSt@100 ºC 8.20, 9.18, 8.49, 8.78, 9.31

Kurtz

iTrader: (1)

Short trips where the engine never gets to run at operating temp are about the worst thing you can do to engine oil.

Change it every 3 months, with the cheapest oil you can find in the proper weight, regardless of mileage. That'd be my advice.

Gville350

iTrader: (10)

Yep, your stop-and-go and short commutes are greatly decreasing the longevity of the bearings.