What's the 2017 mercedes GLS 450 oil capacity?

The 2017 Mercedes Benz GLS450 came factory standard with a 3.0L V6 engine under the hood and this was going to be the same for all models since there was other engine upgrade made available. This engine is going to need a total of 7.4 US quarts, filter included, to fully fill up the engine. You're going to need to use either synthetic 0W-30 or 0W-40. You should look for a type that says it is meant for European vehicles. Mercedes will also sell their own brand that You can use. It is a high quality brand but it is not needed and You can use any brand that fits the right weight.