Why mess around with non-recommended oils?

[Ross]

cause i don't really give a **** what bmw says the company that brought you the 9k mile oil change that upped it to 15k miles when the changes became free under warranty, and converted all other fluids to lifetime fill at the same time, the same company that brought you the wonderful plastic dissolving blue coolant and my favorite the cyclonic pcv system

"my favorite the cyclonic pcv system"
It doesn't clog like old vacuum cleaners.

[Russell]

cause i don't really give a **** what bmw says the company that brought you the 9k mile oil change that upped it to 15k miles when the changes became free under warranty, and converted all other fluids to lifetime fill at the same time, the same company that brought you the wonderful plastic dissolving blue coolant and my favorite the cyclonic pcv system

+1 on everything you said. First thing I did was change all the fluids on my e34 when I bought it 6 years ago.

[Rick L]

Advancement in oil has improved in last 15 years. Just like the advancement in tire technology even though they look the same. But weight of oil remain the same as it is classed by flow rate.

[Grantus]

Remember, we are not talking new pristine cars here, Other sets of rules start to apply.

Owners of well used second hand cars need to have a different perspective from those who could afford our type of cars new.

[pcross]

I believe high-mileage vehicles should be approached a little differently as far as engine oil is concerned. My 1995 525i has 235,000 miles on it and hums along like a well-adjusted timepiece. I use (and have used for years) Chevron Delo 10W40 oil. Delo is very heavy duty oil that is primarily blended for diesel engines. I also change my oil every 3,000 miles without fail (a regular oil change is, in my opinion, the cheapest preventative maintenance one can perform). But, opinions are like noses...everyone has one.

[Rick L]

Just wondering if anyone here is using "high mileage" oil? I heard mixed opinions regarding this. I thought about it but decided to keep my current oil setup as it works perfectly since purchasing my E34 525i and she loves it. For me, I have always used Mobil 1 (0w-40) for spring, summer, fall and Mobil 1 (5w-30) for winter. And my car still runs like it came out of the factory and no leaks.

[M20Turbo]

Red Line Oil http://www.redlineoil.com/ is what I have been running in my E34 since 1992, works well for me.....

[Ross]

My understanding of th eso called high mileage oils is they contain additives intended to swell old seals. I had a bad experience with an additive like that long ago so stay away from "high mileage" oils even though I have a few worthy candidates.

[pcross]

Delo 10W40 is not a high mileage oil. It is primarily a heavy duty oil for hard-working diesel engines. It has no seal swelling additives or other junk like that. I just happen to use it in my high-mileage 525i.

[attack eagle]

I don't think this thread applies to Royal Purple, does it?

poor mans' royal purple = go down one number on the oil weight for 1/2 the quarts used. that's all it is+ some purple coloring.

RP can be very very bad news if you don;t know you should buy one weight higher than normal for equal oil pressure. Seen far to many high specific output cars go BOOM within5-15 minutes of switching to RP.