Fuel additives
MBWorld Fanatic!
Joined: May 2018
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From: Long Island, NY
2019 E 450, 2016 E350 4matic (retired), 2018 Ford Edge Sport, 2008 Porsche Boxster
Unlike "days of yore" today's modern gasolines have cleaning additives blended in, from regular to premium, that effectively keep the fuel injectors and system clean.
Save your money!
Thread Starter
Member
Joined: Sep 2020
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From: Chicago, IL
2019 BMW 540, 2017 Mercedes-Benz E300 4-Matic
Yeah, I thought so. I went to the dealership today and they told me I am due for a transmission fluid change along with some fuel system cleaner. I'm only at 31k miles.
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From: MA
2008 E350 4Matic, 2011 E350 4matic
Yeah, all that is worthless, it's basically additional dealer profit. If you want to use an additive, there's Techron, but if you use top tier gas, it already has a decent amount in it. Exxon, Mobil, Shell, BP, Costco etc are all top tier gas vendors.
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Joined: Sep 2020
Posts: 131
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From: Chicago, IL
2019 BMW 540, 2017 Mercedes-Benz E300 4-Matic
I'll probably use techron my next fill up. Who knows what gas the previous owner used. The car was a lease return
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Joined: May 2018
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From: Long Island, NY
2019 E 450, 2016 E350 4matic (retired), 2018 Ford Edge Sport, 2008 Porsche Boxster
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MBWorld Fanatic!
Joined: Feb 2014
Posts: 6,190
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From: MA
2008 E350 4Matic, 2011 E350 4matic
There was some chart that told you how much was in top tier gas but can't find it now. Some had more than others, but I think if you put in a bottle, that was way more than any top tier gas. But top tier gas is probably enough. I never put any in mine but then again, they say it might matter more in direct injection engines.
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MBWorld Fanatic!
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Top Tier says.
TOP TIER™ licensed brands are formulated to meet the stringent requirements of ten leading automotive manufacturers and four leading diesel manufacturers. The majority of automakers and engine manufacturers today do not recommend adding any additives to the fuel.
Member
Joined: Apr 2018
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From: Connecticut
2013 E550 Sedan, 2005 E500 4matic Wagon
Techron is as good as it gets as far as a consumer good. Di engines should have an injection service at least by half life. Direct injection is a whole different animal than typical pintle or disk low pressure systems.
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Joined: Aug 2019
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2019 GLC300, 2017 E300
I’m using a 20oz bottle of Techron complete fuel system cleaner before every oil change. I’d be ignorant to think an injector in the combustion chamber won’t get dirty. I do this in my w213 and my wife’s x253 , as well as in my old direct injected cars. Also running top tier fuel.
