GL450 w/3200mi oil burner
i would think that a low factory fill would've been detected before vehicle delivery, & i've never had a V8 engine lose so much oil in only 2-months of ownership. i swear that our previous lexus GX470 never burned any oil--not when new, or any other time during the 3yr lease.
i've read in some other posts, where S550 owners reported black smoke @startup, but i haven't ever noticed this. just getting worried, because our friends bought their GL450 a month before us, & although they don't have an oil burning issue--they did have to have the front suspension serviced for a factory defect (cannot remember the details of their service writeup; can post it later, if anyone is interested).
i called the MB dealer, & they told me it's normal to burn oil, which i understand--but half a dipstick? would make me feel better if our friends' GL450 was also burned oil...
This is directly from the Interactive Owners Manual located here... http://www4.mercedes-benz.com/e/cars...ng/flash6.html
.8 liters per 1000KM is 27 ozs per 621 miles. Or about a quart every 721 miles... This seems like a lot, but engines sometimes consume oil as they break in.
Last edited by Danno4x4; Dec 1, 2006 at 12:52 PM.
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and yes- the official statement is up to quart every 1000 miles is permissible.
extended high-rpm drives on the highway will use some oil- more when engine new.
germans usually use oil as they rely on piston oil squirters for cooling more than any other school of thoughts. being doing it since wwii
that is why they have the 8 quart oil pans
I use M1 10W30, but bear in mind I am in San Diego, the thing sleeps in a garage at night, and it's unusual for it to drive in ambient temperatures above 90F. Generally quite mild driving, too. When I exhaust my supply of 10W30 I will start using 0W40 to see if that reduces the consumption rate.
Pretty soon I am going to quit changing the oil at all, just the filter, because I'll be adding oil faster than the normal change interval!
I also understand that there is more jeopardy from too high viscosity oil than too low.
If the increase in oil consumption rate suddenly stops when I put in 0W40, I'll post an update.
I do wish I had priced 0W40 at Walmart; I got into 10W30 because of its Costco price, but I found out 5-quart jugs of 0W40 at Walmart are only a little more expensive per quart.
I wish I'd kept a closer eye on the oil consumption rate at lower mileage. I know I saw the oil level warning light come on some time around 45K miles, so it's had a drinking problem for a while now.
I'm not too worried about it; the thing's value is already down to $13K, so it's not too much to stress about. Even if I get down to a quart every 500 miles, it's not that big of a deal.








