I am going to try it... I have always changed my oil at 3-3500k. With 3 cars and my wife now driving 500 miles a week, I have to see if we can get 6k out of an oil change. All of our cars have over 128k on them.

I don't fall behind on oil changes, but I need to keep up with my other anal maintenance.... I am behind on rear shocks on the Expy and the 300e.... need to do front rotors on the CE... and I could go on and on...

Of course it's been a great summer spending time at the lake....

__________________
1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


[/SIGPIC]

if you have a turbo be careful... at 140k miles it will
be filled with coke.. even the lines going to it... and a
good oill will start breaking that stuff loose and cost you your
turbo...

I have read that synthetic oils will find weak gaskets/seals and leak where dino oils wont!

I saw this Rotella at Wal-Mart recently. In the course of researching it, I read some very positive things.

I have been using Delvac 15W-40, which is too heavy. For the past three weeks I have been using Castrol 10W-30 because it has been so cold, and also because I want good dispersal during my Auto-RX cleaning phase.

This spring, I was planning to switch to 10W-40, but don't like what I read about "viscosity index improvers" (or something to that effect) in 10-40 oils.

I need a 40-weight, but my change interval is too frequent to justify the cost of Mobil 1. Seems the Rotella 5W-40 is just what I need, especially after reading this:

__________________
2008 E350 4matic / Black/Anthracite

------------------------------------
Gone but not Forgotten:
2001 E430 4matic, 206,xxx miles, Black/Charcoal
1995 E320, 252,xxx miles, Black/Grey
1989 260E, 223,00 miles, Black/Black