mykel79

Any E450 owners that would be willing to share their fuel economy, especially at highway speeds (around 80-90 mph)?

I'm in Europe and we don't have the E350 available. So it's either the 200, which is a bit weak, some plugin hybrids (which I don't care for) or the E450. Everything besides the price is better for the E450. I'm not thinking about the fuel cost angle, but whether I'll have to constantly spend time filling up the tank while on a road trip. I currently have a diesel GLE so I practically don't have to think about that at all.

martinlarose

Same engine but I have a 2022 S 500 short wheel base

martinlarose

I have gotten as low as 7.1 litres per 100 km but still trying to find the pic from last summer. Will post if I can locate it

mykel79

Thank you very much! That looks very good. So one more potential negative to cross off the list. Now I have to convince my wallet Unfortunately where I live, 3 liter engines have much higher tax rates that 2 liter ones. That makes the jump to a bigger engine very expensive.

martinlarose

martinlarose

I’m thinking that when my S class lease is up ( in 12 months) of getting the new e 450. I got the S because I wanted the newer tech rather than get a new e I was driving a 2019 eclass wagon. Unfortunately the new E won’t be available in Canada in the wagon because if it was I would get one when my S lease is up

JTK44

FWIW: I have a 2019 E450. I use regular gas. At 75 mph on relatively flat roads I get between 33 and 34 mpg -pretty much the same as the E350. In town however I only get between 21/22 mpg. I would assume the new I6 on the E450 will do as well if not better than my E450.

Hope this helps.

mykel79

Yes, that helps a lot! Thank you. I don't really care about the city MPG, as long as it's not atrocious. I was curious about the highway MPG so every I didn't have to make stops more often than I wanted to. It looks like the fuel consumption is very nice, even when I compare to my diesel SUV.

JTK44

My E450 comes with the 21 gallon tank, vs. 16 on the E350. On the road, when I fill up, my range is consistently above 600 miles!

mykel79

The range will probably be less on the Autobahn, but it seems that it will still be very good.

JTK44

The 600 mile plus range is driving between 70 and 80 mph. The RPM at those speeds is about 1700/1800. The engine is just "loafing" along. With the 4 cylinder the engine is working to maintain those speeds and that is why I believe the highway mileage is pretty similar.

I do not know what the range will be above 80 mph. But even if the range drops to 500 miles which is 800 km, should be more than enough to complete any trip on the autobahn.