New to E30 325is What OIL?

[nmlss2006]

Aha! Thank you sir, finally a reply that makes some sense. Of course the valve train would be the major difference and indeed http://www.mobiloil.com/USA-English/...1_15W-50_.aspx supports your statement - I guess I should've read that earlier. I guess that'll be going in in 4800 miles. What about the other concern though - i.e. cold weather starts?

Edit: further info on the topic, http://landroverforums.com/m_65996/mpage_2/tm.htm, post 15.
Better URL to content above: http://www.steelsoldiers.com/index.p...topic&p=167978

[DCColegrove]

Aha! Thank you sir, finally a reply that makes some sense. Of course the valve train would be the major difference and indeed http://www.mobiloil.com/USA-English/...1_15W-50_.aspx supports your statement - I guess I should've read that earlier. I guess that'll be going in in 4800 miles. What about the other concern though - i.e. cold weather starts?

Edit: further info on the topic, http://landroverforums.com/m_65996/mpage_2/tm.htm, post 15.
Better URL to content above: http://www.steelsoldiers.com/index.p...topic&p=167978

Probably not a well known fact but one of my jobs at BMW was to test things to destruction...
Then go back to engineering...
and tell them how and where they fucked up.

On the topic of cold starts:

I don't really know what to tell you.

Because of emissions the amount of zinc (worked as a sacrificial coating that would bond to metal parts) has been reduced in modern oils.

This is a problem for the older engine designs. Just don't rev them cold...

[nmlss2006]

Well, I didn't even know that you used to have a job at BMW, so I learned two things.
As to cold starts, I certainly don't rev engines when cold, but I also tend to change vehicles well in advance of the 100kmi mark. One E30 right now has 123kmi, I plan to keep it for another 123k or so, we'll see where that goes.
Since I have you here and I think a lot of people beside me would benefit... what do you say IRT change intervals?

[DCColegrove]

I change my oil about every 5k (even with synthetic)

[Mulholland]

20W 50 = happy E30's in texas for sure.

[ethree]

20w50

We have a winnnnar!!111

[z31maniac]

I change my oil about every 5k (even with synthetic)

Yup, that's advantage of using synthetic for me. That and I was sold on Synthetic from my sportbike days after seeing the HUGE difference quality oil made in the transmission, ie smooth, precise shifting. Has to be good for the motor too.

Change when the weather warms up, change again when it cools back down.

Oh, 20w-50 Royal Purple, beat all but one oil on a wrist pin wear test, and I get it with my buddies employee discount.

[moatilliatta]

didn't beat amsoil..

[nmlss2006]

5k it is, then. 4300 to go.

[Greekstyles]

10-30 summer, 10-40 winter (NY)

if you wana go synthetic which..(which isnt really for these older engines) use ELF oil, coastly but its better than mobile 1. my reason for saying that is seeing the differences in all types of cars ive done oil changes on in the past 2-3 years at a shope i used to work at, the difference in the smell texture and visual BLACKness of oil between mobile 1 and elf is horrendice(sp). when i tell you every car with mobile 1's oil was black smelled more burnt than normal, i actually felt bad for the motors. lol

[DCColegrove]

10-30 summer, 10-40 winter (NY)

if you wana go synthetic which..(which isnt really for these older engines) use ELF oil, coastly but its better than mobile 1. my reason for saying that is seeing the differences in all types of cars ive done oil changes on in the past 2-3 years at a shope i used to work at, the difference in the smell texture and visual BLACKness of oil between mobile 1 and elf is horrendice(sp). when i tell you every car with mobile 1's oil was black smelled more burnt than normal, i actually felt bad for the motors. lol

Now there's a real expert for you....

[CorvallisBMW]

10-30 summer, 10-40 winter (NY)

Shouldn't that be the other way around?

[Mystikal]

Now there's a real expert for you....

Haha, I was going to reply but you did it in far less words and with a lot more style. +1

[DCColegrove]

Haha, I was going to reply but you did it in far less words and with a lot more style. +1

I try really hard not to be sarcastic...

But it just kind of slips out at times.

[rwh11385]

Syn is probably better, but it likes to leak out a lot more than conventional in my M20.