billjet

Per usuer manual:
"Depending on your driving style, the vehicle
consumes up to 0.9 US qt (0.8 liters) of oil per
600 miles (1,000 km). The oil consumption
may be higher than this when the vehicle is
new or if you frequently drive at high engine
speeds."

What is your real world consumption with the M274 engine on board the GLC300 4Matic ?

Here in Canada MB suggest their own brand of 229.5 5W40 synthetic at ~$11/li ( $14 US these days ). Used to be able to get similar specs Mobil 1, but no longer ... 229.5 5W40 is close to impossible to get in my neck of the woods except at MB dealers.

What kind/grade do you use ... are you stucked with dealer purchase ?

Mickfx

A qt every 600 miles? That's bordering on absurd. The worst oil burning car I ever owned was an Audi Q7 and that was about 1/2 qt every 4-5000 miles. Can a current MB owner comment on this?

mikbar2

If it was my car it would be back on the dealers lot.

larrypmyers

If my C oil consumption comes even close to what the manual states is normal, the service manager and I are going to get to know each other...now.

Conceivably, one would be adding oil every other stop for fuel. Absolutely inconceivable for a new Mercedes-Benz automobile.

HouseBuilder328

I read that also, and would be a pain to refill oil that frequently!

Or are they assuming that's what will happen with people who are always "racing" their car around everywhere?

larrypmyers

C$11./US$14. for motor oil is shockingly expensive. Not unheard of though. I have a friend who spends $25.00 a quart for his Ferrari. I am now curious what my dealer charges for MB branded oil.

There are several companies that market motor oil that comply with the MB 229.5 spec. At my first oil change my intention us to use Red Line which is compliant.

Don't know in what part of Canada you live so don't what gas/oil companies you have available. An internet search should enlighten you as to which companies sell compliant oil.

For what it's worth I buy my oil at a local hot rod shop.

It's important to use compliant oil so as to avoid warranty issues with the dealer in the event there is an oil related failure. My observation is that certain dealers do everything in their power to thwart warranty claims.

billjet

I live in eastern Canada, and most oil Co list 229.5 compliant oil in their catalogue but none are available ( ex: "out of stock" )... 229.5/5W-40 is hard to get by and on the internet the price for a quart at an average of $14CDN is more expensive than MB brand at the dealer ( $11CDN ) ...

mikbar2

Our 2016 GLC sticker states Mobil 1 synthetic. On sale under 10 us.

awjenni

I think that statement in the Owners Manual is simply legalese to protect Mercedes Benz. If I recall correctly, that very same verbage has been used in the owner's manuals of every MB that I have owned and that covers a few decades. I currently have a 2012 ML BlueTec and it says the same thing in the owners manual. I wouldn't worry about it.

Al

billjet

FYI MB Approved 229.5 listing

https://bevo.mercedes-benz.com/bevolisten/229.5_en.html

larrypmyers

My MB dealer uses Mobil 1 exclusively.

Donnnn

You should be able to get mobile 1 for $5-6/qt in the 5 qt i the U.S.. Not that many MB owners are changing their own oil. But it does show the relatively large markup dealers take when using this product.

mikbar2

Guess I'm the exception to the rule. I do my own servicing on my vehicles to include the now gone 2015 C300, the now 2016 GLC and our 2015 F-350 diesel. You do need to keep records and receipts for warranty purposes but I like the hands on approach. Found problems on our past Lexus that their techs totally missed till I pointed them out. Guess I'm old school and don't mind getting dirty.

larrypmyers

From the time I acquired my first car, a 41 Chrysler, until about five years ago I was like mikbar 2. No one but me touched my cars crankcase drain plug.

Then at an in opportune time I was leaving on a lengthy trip with my car due service including oil change. No time to do it myself. So, with oil and filter in hand I went to the dealer. After getting a bill for slightly more than $10.00 I decided my time crawling under my vehicles had come to an end.

Both techs. that maintain my cars and I have an understanding. Fill the filter with oil before installation....don't torque the filter and crankcase plug to 200 lb ft.

JEVA

This is the method I use on my motorcycles. I had Kawasaki once that would show an oil warning light for a bit when starting after an oil change if this wasn't done. That's always scary. I've done it ever since.

mikbar2

The gist of my reply was that other people do what they're told and don't go any further. When I change the oil I check the brakes, suspension and chasis. You don't get that for $10. I also check the belts and hoses.

larrypmyers

The first time they didn't fill the filter I asked about it. The response was the manual doesn't require it. My response was don't care what the manual says my Dad taught me to fill the filter and that's what I wanted them to do.

The warning light you talk about is exactly the reason you fill the filter.

larrypmyers

Oh but I do. They check everything you discussed above and more, like rotate the tires, fill the windshield washer fluid reservoir. set tire pressure and check coolant level. They don't lub hinges but I don't complain. The deal is too good. Don't look a gift horse in the mouth.

dislaGLK

Hi, what oil grade are you using for GLC300, please?
I saw an engine compartment sticker recommending Mobil1 brand.
I live in NJ and travel up to Canada in the winter and was guessing 5W30.
Thank you!

geza

1/2 liter of OEM 5W40 per 5000 miles. Car has 38491 miles on it as at August 8, 2021. Yes - metric oil volume and imperial distance.

sn202020

in Canada, CanadianTire sells Motomaster 5w40 synthetic 5 liter jug for only C$25 on 50% sale. Which is 229.5, SN plus, made by Shell.

https://www.canadiantire.ca/en/pdp/m...-0288720p.html

Or, Motomaster oeplus 0w40 5L for c$27 on sale, if you want 0w oil grade.

https://www.canadiantire.ca/en/pdp/motomaster-oeplus-european-0w40-premium-synthetic-engine-oil-5-l-0287963p.html

I buy many of them on sale, then change oil every 5,000km.

wagga_ria

A couple years ago when I had my GL, found that Mercedes Benz Engine Oil comes from FUCH, in Australia anyway.

ceasar m

Hi All,
I have a GLC250d MY18 that is out of warranty,and schedule for service ( change oil) in a months time. I have a Nulon 5-30 DIESEL synthetic that I use in other car(Prado 150), I look at the spec and it says Merc approved 229.51 spec oil. Is this alright to use for GLC for Australian climate?Just confuse about the 229.52 oil. Cheers
Thanks