I just picked up my car from the dealership after having the oil pan replaced. They are telling me this is the correct oil level but I think it is one bar low. Is this correct or not ??


Low ??

 

Yes and yes. You're fine as it is, but if you add 1/2 quart you'll be fine too. In a car with a less than stellar, and expensive to correct, PCV system, a little less oil is better than a little too much oil. Windage in an M177 motor is not your friend.

 

First time hearing about this, could you expand on this, why is it so?
I thoguht running near max oil level is optimum?

 

Windage is the term used when the lower part of the crackshaft is touching oil in the oil pan. As the crank spins, it whips the oil into vapor in the crackcase. So you never want to have enough oil in the crackcase to where it touches the bottom of the crankshaft. Excess oil vapors contributes to clogged PCV valves. And in the case of the M177, which has a fancy smancy PCV system, otherwise known as oil vapor seperator or OVS for short. This problem is somewhat mitigated by an upper crankcase cover, which is a plastic shield under the crankshaft; it has an oil pickup tube attached to suck oil out of the lower crankcse for engine lubrication. It's actually pretty cool stuff and I'm not the best at explaining. If you want a better explanation I'll grab a couple YT videos for you.

 

I see, cool, learned something.
Deffo post YT vids if you have them!

 

Not the best explanation, but around 5 minutes in they will mention windage