Oil matters

[tom270]

Hi all
Just had e270 serviced and they've stuck 5/30 low ash Mobil oil in
Looking at service book it has always had 0/40 in
Is there much difference to way it effects engine?
Also since service annoying whining noise coming from engine/ gearbox at certain revs and only at certain times??
Appreciate
Tom

 

[renault12ts]

One thread on the same subject is enough.

 

[tom270]

Where is it please

 

[renault12ts]

I mean this one:

http://www.mbclub.co.uk/forums/engine/138212-oil.html

 

[bensonhedges]

I've had a whining noise since my recent service - I shall check tomorrow if they used a different oil

 

[grober]

Have a look at this list of MB recommended 229.51 oils there are more 5w30 than 0w40 http://bevo.mercedes-benz.com/bevol...h=bevolisten&blatt=229.51&content_action=show Theoretically 0w40 should be slightly better at starts in very cold weather but its probably insignificant. Chances are what you got previously was just what the dealer had in bulk stock at the time of the service that fitted the spec.

 

[markjay]

My car had in the past Castrol 5w-30 and Shell Helix Ultra 0w-40, all from (different) MB main dealers. As said both are suitable for UK climate, however mine is serviced now by Olly PCS and he uses Mobil 5w-30 so that's what it has now.

On another note not sure how engine oil grade can make a difference to the noise coming from the transmission?