How to improve gas mileage?
Thread Starter
Newbie
Joined: May 2017
Posts: 1
Likes: 0
1999 E320 Sedan
How to improve gas mileage?
I have a 1999 E320 sedan and I'm only getting 15mpg so far. I'm wondering if there's anything I can do to improve the mpg? I was wondering if I should just increase the tire pressure, as I'm currently using the manufacturer's recommended tire pressure at 27psi and my wheels are standard OEM ones. Please advice. Your advice is greatly appreciated.
Thank you
Thank you
MBWorld Fanatic!
Joined: Aug 2006
Posts: 1,219
Likes: 94
From: MD
w210 AMG or S213
15 mpg is not that great, I get 18-20 from my e55.
There is a label on the door jam that should have the recommended tire pressure. Running more pressure can cause the tires to wear unevenly.
Regular maintenance items can help improve your mileage.
- Clean your MAF
- Change your air filter
- Change your spark plugs if they have not been done
- Check and see if the car is throwing any codes
Are you using the right type of gas?
There is a label on the door jam that should have the recommended tire pressure. Running more pressure can cause the tires to wear unevenly.
Regular maintenance items can help improve your mileage.
- Clean your MAF
- Change your air filter
- Change your spark plugs if they have not been done
- Check and see if the car is throwing any codes
Are you using the right type of gas?
MBWorld Fanatic!
Joined: Jan 2010
Posts: 3,249
Likes: 257
From: Richmond, CA
2001 E320 Wagon, 2006 LBZ Silverado, 2007 E63 (sold), 2001 E55 (sold)
That tire pressure seems way low, I've never run that low on purpose. Definitely check the air filters too.
My DD Dodge Durango recently started getting 10mpg no matter how I drove and it felt sluggish. I checked the air filter one day and it was in bad shape. I couldn't remember the last time I'd changed it. Anyway, it felt like a completely different vehicle afterwards and went back up to it's normal 14mpg with mixed driving.
My E63 gets at least 15mpg with all city driving. That's with a 6.2L 507hp V8 in it and I i have a heavy foot.
My DD Dodge Durango recently started getting 10mpg no matter how I drove and it felt sluggish. I checked the air filter one day and it was in bad shape. I couldn't remember the last time I'd changed it. Anyway, it felt like a completely different vehicle afterwards and went back up to it's normal 14mpg with mixed driving.
My E63 gets at least 15mpg with all city driving. That's with a 6.2L 507hp V8 in it and I i have a heavy foot.
MBWorld Fanatic!
Joined: Nov 2012
Posts: 6,130
Likes: 1,117
A gaggle of MB's
1. Recommended tire pressure is NOT in door jam - it is inside the fuel filler flap - yes 27 PSI is way-way too low
2. Age/Mileage -
a) Plugs based on age alone spark plugs are due for change - replace ONLY with OE equivalent single electrode platinum 7422 equivalent (like $60 or less) and NOT with any multit-/trickster plug.
b. Fuel system cleanup - buy $13 bottle Stabil Marine fuel stabilizer and dose the tank per instructions - this is to clean up the fuel system from all the ethanol junk - followup with 2nd application (bottle is about 3 applications) in about 5K miles
http://www.autozone.com/fuel-and-eng...zer/592428_0_0
c. Replace air filter with Mann or Hengst only - about $16 - wipe the inside of the air box clean with the junk in there
d. Based on age/miles consider new/fresh MAF - this Amazon apprears to be genuine and cheap
2. Age/Mileage -
a) Plugs based on age alone spark plugs are due for change - replace ONLY with OE equivalent single electrode platinum 7422 equivalent (like $60 or less) and NOT with any multit-/trickster plug.
b. Fuel system cleanup - buy $13 bottle Stabil Marine fuel stabilizer and dose the tank per instructions - this is to clean up the fuel system from all the ethanol junk - followup with 2nd application (bottle is about 3 applications) in about 5K miles
http://www.autozone.com/fuel-and-eng...zer/592428_0_0
c. Replace air filter with Mann or Hengst only - about $16 - wipe the inside of the air box clean with the junk in there
d. Based on age/miles consider new/fresh MAF - this Amazon apprears to be genuine and cheap
