Can I use 87 octane gas on ML350, 2015 Mercedes?

Asked by Dec 20, 2014 at 11:24 AM about the 2015 Mercedes-Benz M-Class ML 350 4MATIC

Question type: Maintenance & Repair

4 Answers

I have been useing it for the past 70000 on my R350 and it works fine for me. Click and Clack radio say the timing adjusts to whatever octane you use. I put in high octane for the first 80000 miles and it does not make a difference that I can see. Lately the check engin light comes on but I put in some Chevron Techron and the light goes out, my millaga goes up some. I use Mobil 1 and change oil about every 8000 miles and do not put the pedal to the metal but I cruse on freeways at 70 mph. The car still looks like new and I have no repairs for 150000 miles. Just regular maintance mostly by me. My average mpg for past 12000 miles, city and highway is 21.6 mpg if the speedometer readings are correct. I get up to 24 mpg on freeway crusing.

5 out of 5 people think this is helpful.
8,475

I have had several MB's over the years. The 350 engine runs just fine on 87 octane. I did not notice any substantial difference in power or mileage using 89 and 91 octane. I would suggest using Tier 1 gas whenever possible. The larger MB engines, however, are a little more picky. Specifically the SL550 (2007 vintage) and the new E550. ALL will run on 87 Octane. However, the best combination of power and mileage has been with 89 Octane. Using 91 or 93 octane did not get any better mileage or power - just wasted more money. Using the 87 Octane did give some loss of power and mileage. Modern engines are generally very good in adapting to whatever fuel you decide to use. Again, I would encourage using Tier 1 fuel whenever possible. The extra additives go a long way in protecting your engine and keeping the power up.

8 out of 8 people think this is helpful.
80

I've driven over 60,000 miles on my 350 ML on 87 octane gasoline without any performance difference. Average 22 MPH, 25 on the hwy with cruise. It is an excellent piece of German engineering that does not require costly premium fuel. Why pay more?

8 out of 8 people think this is helpful.
8,475

As I said in my previous post - the 350 runs just fine on 87 Octane. It is the larger engines that sometimes have noticeable difference when you drop down to 87. As a side note: my service advisor told me that MB had a TSB a while back. They were quietly detuning some of their engines so they would run on 87 gas. This was because so many customers were using 87 rather than spend the money for over priced Premium gas.

6 out of 6 people think this is helpful.

Your Answer

Add photo

Related Questions

M-Class

Looking for a Used M-Class in your area?

CarGurus has 5,219 nationwide M-Class listings starting at $2,980.

ZIP:

Search Mercedes-Benz M-Class Questions

Mercedes-Benz M-Class Experts

#1 jihadghazali
jihadghazali
Reputation 1,120
#2 wellness
wellness
Reputation 860
#3 snowseal19
snowseal19
Reputation 570
View All

Related Models For Sale

Used Mercedes-Benz GL-Class
232 Great Deals out of 4,377 listings starting at $8,777
Used BMW X5
412 Great Deals out of 15,916 listings starting at $1,300
Used Mercedes-Benz E-Class
468 Great Deals out of 22,610 listings starting at $1,999
Used Mercedes-Benz GLK-Class
128 Great Deals out of 3,109 listings starting at $9,058
Used Mercedes-Benz C-Class
557 Great Deals out of 30,744 listings starting at $1,500
Used Mercedes-Benz GLE-Class
33 Great Deals out of 6,745 listings starting at $38,990
Used Mercedes-Benz S-Class
147 Great Deals out of 6,393 listings starting at $2,300
Used Porsche Cayenne
121 Great Deals out of 5,500 listings starting at $3,999
Used Lexus RX 350
469 Great Deals out of 20,430 listings starting at $5,599
Used Mercedes-Benz G-Class
15 Great Deals out of 1,059 listings starting at $21,000
Used Audi Q7
75 Great Deals out of 3,703 listings starting at $4,900
Used BMW 5 Series
512 Great Deals out of 14,681 listings starting at $1,375
Used BMW X3
363 Great Deals out of 13,367 listings starting at $3,450
Used Acura MDX
227 Great Deals out of 17,687 listings starting at $1,999
Used Jeep Grand Cherokee
806 Great Deals out of 70,394 listings starting at $995

Used Cars For Sale

2015 Mercedes-Benz M-Class ML 350 4MATIC For Sale
4 Great Deals out of 280 listings starting at $29,998
2014 Mercedes-Benz M-Class ML 350 4MATIC For Sale
30 Great Deals out of 682 listings starting at $24,843
2013 Mercedes-Benz M-Class ML 350 4MATIC For Sale
9 Great Deals out of 206 listings starting at $19,980
2012 Mercedes-Benz M-Class ML 350 4MATIC For Sale
6 Great Deals out of 296 listings starting at $17,699
2011 Mercedes-Benz M-Class ML 350 4MATIC For Sale
3 Great Deals out of 285 listings starting at $13,599