AMSOIL

[KenC]

I recently filled my M10 with AMSOIL 5w30.
http://www.amsoil.com/products/asl.html
I've heard that it's really high quality synthetic. On the back of the bottle they claim that it lasts for 25k miles between changes. Should I believe this? With fully syn I usually go 5-7k between changes. For $6/quart I'm hoping that it'll last 25k :D .

[bimmerphile]

yeah up to 25k in NEW cars. Check their websites. that's the caveat with the other synth manufacturers.

I wouldn't do more than about 12k, personally.

[UNHCLL]

some people swear by AMSOIL, others swear by REDLINE, others by Mobil 1.

I dont care what the bottle says, I'd never run an oil for 25k.

[Charlie]

25k picks up a lot of crap in the oil, take a look at those tiny oil filters these cars run.

I run Mobil 1 in the Ti for about 7-8k intervals, the 'is 2-3k, (6-month).

-Charlie

[Jordan]

I run 5-W30 Mobil 1 in the e36 M3. I go 6-7k.

Changed the oil 3 times now, all 3 times it was still amber, and clean...not black.

[KenC]

Yeah, I figure I'll go about 6-8k. Which will probably be the beginning of June or so...

[EVOIIIM3]

I run Redline and Amsoil. Both are very high quality!!!

I do believe you can run it for a year or more. They do recommend you change the oil filter every 6months.

I have been getting oil analysis done for the past year, every time, they tell me that it should not be replaced, but I do.

Also, you should run a engine flush threw the car if you plan on a long drain interval.

If you think $6 a qt is expensive stay away from the Series 2000 & 3000 Amsoil!! Redline retails for $9 a qt.

[KenC]

If you think $6 a qt is expensive stay away from the Series 2000 & 3000 Amsoil!! Redline retails for $9 a qt.

Yeah, I saw that! They had some 5w20 that I was looking at... then I checked the tag. $8.99/qt.