Engine oil Z3 M

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Zippy181054
Joined: Tue 02 Feb, 2016 13:13
Posts: 12

  M roadster S52
Location: Cheltenham . Gloucestershire

Engine oil Z3 M

Post by Zippy181054 » Thu 11 Oct, 2018 13:48

Anybody out there aware on the regularity of changing engine oil as I don't do a lot of miles so service lights do not drop that quickly?

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Fender2004
Joined: Fri 14 Aug, 2009 11:24
Posts: 886

  Z3 roadster 2.8
Location: Houghton-Le-Spring

Re: Engine oil Z3 M

Post by Fender2004 » Fri 12 Oct, 2018 16:27

The more offen you change the oil the better it is for the engine. I also don’t do a lot of miles each year, but I change the oil every year, regardless of how small the mileage is from the previous year.
If you change it yourself it makes the oil change a lot cheaper as well.
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Zippy181054
Joined: Tue 02 Feb, 2016 13:13
Posts: 12

  M roadster S52
Location: Cheltenham . Gloucestershire

Re: Engine oil Z3 M

Post by Zippy181054 » Fri 12 Oct, 2018 17:38

What grade aee you using?

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Gazza
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Joined: Tue 04 Oct, 2005 21:58
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  M roadster S54
Location: East London/Essex

Re: Engine oil Z3 M

Post by Gazza » Fri 12 Oct, 2018 18:26

As suggested, yearly would be ok.

A few grades have been suggested or favoured, 0/40 being one.

I’m sure my last change was 5/30
Gazza

"Understeer is when you hit the wall with the front of the car, oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall and torque is how far you take the wall with you"

S54 M roadster Image, BMW Z1, BMW M3 CSL, Z4M Coupe
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Fender2004
Joined: Fri 14 Aug, 2009 11:24
Posts: 886

  Z3 roadster 2.8
Location: Houghton-Le-Spring

Re: Engine oil Z3 M

Post by Fender2004 » Fri 12 Oct, 2018 19:35

I use 5-40 fully synthetic then whatever your favourite brand is.
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Zippy181054
Joined: Tue 02 Feb, 2016 13:13
Posts: 12

  M roadster S52
Location: Cheltenham . Gloucestershire

Re: Engine oil Z3 M

Post by Zippy181054 » Fri 12 Oct, 2018 19:50



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Bobafixit
Joined: Mon 28 Sep, 2015 21:00
Posts: 15

  Z3 roadster 3.0i

Re: Engine oil Z3 M

Post by Bobafixit » Sat 13 Oct, 2018 00:41

I usually use good quality 5W 30 LL04.....can't go wrong with Mobil 1

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pingu
Joined: Fri 30 Apr, 2004 17:01
Posts: 3363

  M roadster S50

Re: Engine oil Z3 M

Post by pingu » Sun 14 Oct, 2018 15:21

It depends on the engine. S54s use different oil from S50s...

http://www.porterbility.co.uk/BMW_Oil_Sheets.htm
Pingu

Zippy181054
Joined: Tue 02 Feb, 2016 13:13
Posts: 12

  M roadster S52
Location: Cheltenham . Gloucestershire

Re: Engine oil Z3 M

Post by Zippy181054 » Sun 14 Oct, 2018 15:55

I was under the impression all M Series used 10w 60, not sure why it would be for specific engines, mine is the S50 by the way

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pingu
Joined: Fri 30 Apr, 2004 17:01
Posts: 3363

  M roadster S50

Re: Engine oil Z3 M

Post by pingu » Sun 14 Oct, 2018 17:19

Engine oil is very complicated. It's like blood. Oil grades are like blood types in their simplicity. There are just a few types of blood, O, A, B and AB with rhesus + and -, right? Wrong? There are many subtleties that make some blood better than others at different things (hence blood doping) - it's the same with engine oil. The grade only describes the flow characteristics. That is only one of the many things that make an oil fit for purpose.

Any engine will run for a limited time on almost any oil, but high performance engines perform best when they have the correct oil - and the M is all about performance.

The correct oil is the one recommended by the engine manufacturer, not the oil recommended by the oil supplier. The oil supplier will recommend the oil from their range that they think is closest to the correct oil.

I know that you are not talking about using a cheap oil, but just in case, here are my thoughts...
My personal definition of high performance is 100bhp/litre. An engine that is not close to that can use off-the shelf oil to the correct grade, but an engine that is close to, or above, should use the correct oil. I skimp on oil in my van, but not in my Smart or the M. I could skimp on the oil in my 330, but choose not to.
Pingu

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