Would a stealer use the wrong grade oil in a service?

[PeterVV]

I had a service last week, and they used oil part number 90513470, which someone reckons is 10/40w not 5/30w that it should have. Is there any way anyone on here can check this?
Would a stealer use the wrong oil?
ALSO...how much brake fluid is in a system, they supposed to have changed the brake fluid but only charged me for 1 off 93165409 which I assume is 250ml?

[danBoy]

Yes they would use the wrong oil, if they used 10/40 its no issue it just halfs the service interval life. They only use one bottle of brake fluid which is right. I used to work at a dealer breifly so these bits I know

[PeterVV]

Yes they would, if they used 10/40 its no issue it just halfs the service interval life. They only use one bottle of brake fluid which is right. I used to work at a dealer breifly so these bits I know

Yes , but halfing the service interval on an ECO service? is it possible?

[macdad]

I use 10w 40 in mine but i do drop it every 6 mnths.

[marly]

Mine stuck in semi synthetic. Not sure if it was me imagining it but the engine sounded rougher. They swapped it over to the GM 5w30 LL and gave me a free 5l tub to say sorry!

[solorider]

a lot of fleet companies use 10w40 as it is cheaper in the vectra c,you can reset the service display for the shorter service intervals

[signumboy]

I use full synthetic and i would never trust steelers to change my oil ..so i have done it myself since the car was new

[ANDY W]

My local Arnold Clark used 10/40 semi synthetic in my car and even sells the litre bottles of it for topping up but since found out that it should be fully synthetic and a different viscosity.

[Caterman]

Stealers Don't you just love 'em