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Yuri84

Engine oil question

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Hi. Poped in to home bargains yesterday and saw engine oil there. Stuff from Rock oil. It is fully synthetic 5w30 and has bmw ll04 spec. I used oil of this brand in boat engines,both 2 stroke and 4 stroke and it seemed to be great. Just interested to hear if anybody has had it in there bmw. I am allways very careful whith what oil i put in my car and dont mind paying extra for good stuff. 

Would be interesting to hear opinions.

 

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I only use Mobil1 0W-40 fully synthetic in my car.

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I only ever use Magnatec and have done for maybe 25 years, and fully synthetic these days !

As for a non branded oil, if it’s the right spec and you’re doing oil changes at lower mileage intervals, 6/7 ish thousand then you should expect it to do what it says on the tin !

 

 

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On 1/9/2021 at 12:19 PM, NeilV535 said:

I only use Mobil1 0W-40 fully synthetic in my car.

I think that mobil 1 is one of the best oils. We had mercedes c220 cdi and we purchased it with 185k on the clock. Car has been looked after and only mobil1 oil was used,so engine and turbo were like brand new.

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Yuri,funnily enough it's what I use in my 535d,except I use 5w40. Gets changed every 6-7k. 

 

Always keep a litre in the boot just in case too. £5.50 v £18 for mobil1. 

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27 minutes ago, deano16v said:

Yuri,funnily enough it's what I use in my 535d,except I use 5w40. Gets changed every 6-7k. 

 

Always keep a litre in the boot just in case too. £5.50 v £18 for mobil1. 

Hi. You mean rock oil? At these price it can be changed every 4k and engine will only say thank you. I change oil in my cars also every 5 to 7k miles. I think that going for expensive oil is not really needed and i dont believe in long life oil,because there is none. Maybe only if 99% of the time car is on motorway doing 70mph at 1500 rpm then 10 or 12k is ok,but most cars are stuck in city traffic and oil goes bad very quick. 

There is not only odometer reading we should go by,but also how many hours engine runs. In city 100 miles would be same as 200 on motorway,because when it traffic engine is running,but mileage is not counting.

I am not 100% sure,but think new bmw cars have there service intervals calculated with engine running time in mind,so it kind of lets you know its due service even if mileage or say year or two not been past yet.

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Yes mate,rock oils. 

 

No such thing as long life oil in my eyes. Like you say,my oil gets changed every 3 months or so. 

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oil is like tyres you get what you pay for. Mobil1 has a lifespan of 50,000 miles between changes. Although I change mine every 15,000 miles.

Edited by NeilV535

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I am a genuine oil fan i know bmw doesn't make the oil them selves and i know they have approved the oil for use but for such expensive cars i would rather go for the genuine oil as long as you can get it reasonably price. I believe currently shell makes the oil for bmw. 

 

I have used shell on my mercs before but genuine oil for merc is not expensive either. I dump the genuine stuff  out of mine every 10k.  My last price check had £20 difference between genuine oil and filter versus shell oil and a mahle filter.

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14 minutes ago, F10er said:

I am a genuine oil fan i know bmw doesn't make the oil them selves and i know they have approved the oil for use but for such expensive cars i would rather go for the genuine oil as long as you can get it reasonably price. I believe currently shell makes the oil for bmw. 

 

I have used shell on my mercs before but genuine oil for merc is not expensive either. I dump the genuine stuff  out of mine every 10k.  My last price check had £20 difference between genuine oil and filter versus shell oil and a mahle filter.

Hi. I guess its safest to just get genuine parts.

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