CLK-Class (W209) 2003 on: CLK 270 CDI, CLK 200K, CLK 200 CGI, CLK 240, CLK 320, CLK 350, CLK 500, CLK 550 [Coupes & Cabriolets]

V6 vs V8 gas mileage ?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Sep 19, 2021 | 02:28 PM
  #1  
BenzNewb619's Avatar
Thread Starter
Newbie
 
Joined: Sep 2021
Posts: 3
Likes: 0
None yet
V6 vs V8 gas mileage ?

I’m Looking at one of these used for a DDer as I can maintain them myself and my truck gets terrible gas mileage no matter what I do. I’m talking 8-10mpg ( old Ford Super duty).

Its time for a 2nd vehicle anyway but I’ve read a few threads saying real world there’s really only a 1-2mpg difference in the city and that the v8 is well worth it and can get almost the same mpg depending on how you drive.

I really can’t decide between a c class v6 sedan or a v8 coupe. 3.2 or 5.0.

if the years make any difference I’m looking at the post facelift w209 unless the 2000-2003 is a different series entirely.

Before anyone asks , why not Acura or Lexus ? Are you trying to flex ?

No , MB is my favorite German make and they make the most solid one during this era for sure. Audi and BMW both have terrible reliability and constant issues. Where I live Acura and Lexus IS extremely overpriced. 10k for a 200k beat up 15 yr old car hahaha.

I know there was 4 cylinder model but my car buddy told me it’s gutless and it’s not worth it to get a Benz unless it’s atleast a v6 or v8. He drives a 95 bullnose looking s320. It’s 200k+ but he won’t get rid of it , it rides too nice and has been great to him the almost 10 years he’s owned it.

Anyway is the v8 almost the same as the v6 or is there a night and day difference in mpg ?
Reply
Old Sep 19, 2021 | 03:15 PM
  #2  
E55Greasemonkey's Avatar
MBWorld Fanatic!
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2012
Posts: 4,509
Likes: 1,513
From: Orbiting the planet
This place is a joke.
2-3 mpg difference. The V8 is not only more powerful, but much smoother. I'd go for the V8. If you can find a CLK 550, they are quite fast, and have the newer style engine over the 500. Either V6 or V8, get familiar with balance shaft failure in certain years and avoid them. Use the search for this info.
Reply
Old Sep 19, 2021 | 03:29 PM
  #3  
hyperion667's Avatar
MBWorld God!
15 Year Member
Photogenic
Community Builder
Liked
 
Joined: Jul 2010
Posts: 31,273
Likes: 3,916
From: on my way
2012 CLS63
V8
Reply
Old Sep 19, 2021 | 04:34 PM
  #4  
gle43FL's Avatar
Member
Veteran: Army
Liked
 
Joined: Jul 2021
Posts: 148
Likes: 35
From: Florida, NJ
2024 GLE580, 2013 Jeep Wrangler, 2018 GLE43 AMG *Sold*
V8
Reply
Old Sep 19, 2021 | 07:33 PM
  #5  
W205C43PFL's Avatar
MBWorld God!
 
Joined: Dec 2019
Posts: 32,217
Likes: 6,275
Get the V8 although you get a little less miles per gallon, the smiles per gallon make up for it.
Reply
Old Sep 19, 2021 | 09:01 PM
  #6  
nkx1's Avatar
Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2019
Posts: 337
Likes: 53
From: CA
2010 E550 Coupe
I'd probably get a 2008+ V8 if you can find one. I would skip 2007 due to the above reference balance shaft issue (though early 2008 models also had the issue, so be sure to check before you buy).

If you're near Orange County, CA, I might be willing to sell my V8 with 82K miles.
Reply
Old Sep 20, 2021 | 10:57 AM
  #7  
ambit's Avatar
Super Member
15 Year Member
 
Joined: Feb 2008
Posts: 699
Likes: 44
From: PA
09 CLK550
I've averaged 21MPG over the last 22,453miles on my 09 CLK550
Reply
Old Sep 23, 2021 | 05:35 PM
  #8  
omega48er's Avatar
Super Member
 
Joined: May 2012
Posts: 985
Likes: 16
From: Queens, NY
2009 clk-350 (Black) AMG, 2009 clk-550 (Pewter) AMG
I had both a 2009 clk350 and a 2009 clk550. did not notice any decrease in MPG.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
Old Sep 27, 2021 | 02:51 PM
  #9  
Egg Fartsniffer's Avatar
Newbie
 
Joined: Nov 2019
Posts: 5
Likes: 1
CLK 280 Sport
I get average 22-28 on sensible urban 😆 and 38 on a motorway run in an 07 CLK 280 V6 Sport 7G.
The sound from a CLK55 I was behind makes me wish I'd waited!
Those AMG exhausts!
V8
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 04:27 AM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE