When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Shouldn't be problem. Gasoline octane values are measured in either Research Octane Number (RON) or Motor Octane Number (MON) depending on the testing used. The octane rating published by MB is the RON value, which is prevalent in Europe and other parts of the world. I see you're in the US so the number displayed on the pump is the Anti-Knock Index (AKI), the average of the RON and MON. It's going to be 4 -6 points lower than the RON. So 87 AKI in Canada & US is the same octane rated fuel as 91-92 RON or 82-83 MON in Europe.
Shouldn't be problem. Gasoline octane values are measured in either Research Octane Number (RON) or Motor Octane Number (MON) depending on the testing used. The octane rating published by MB is the RON value, which is prevalent in Europe and other parts of the world. I see you're in the US so the number displayed on the pump is the Anti-Knock Index (AKI), the average of the RON and MON. It's going to be 4 -6 points lower than the RON. So 87 AKI in Canada & US is the same octane rated fuel as 91-92 RON or 82-83 MON in Europe.
So does this mean I can run it on 87 here in the US all the time since that = 91-92 RON?
So does this mean I can run it on 87 here in the US all the time since that = 91-92 RON?
And thanks everyone
Your m272 has 11:1 compression ratio. I wouldn't put 87 octane in it in the summer or if you ever need full power. In colder moths, no problem. The lower CR m112 can get away with it year round.
So does this mean I can run it on 87 here in the US all the time since that = 91-92 RON?
And thanks everyone
They really do mean a minimum of 91, not 87. But was the tank completely empty? Even if you had a little bit of premium in it, it's probably not purely 87. To get 91 with 93, you would need 1/3 87 and 2/3 premium. As others said, with winter you probably won't have much knocking especially if it's low throttle highway driving. Just don't go full throttle while you burn off some gas. I would top off a few times, anywhere from 3/4 to 1/2 a tank. Probably won't do much damage. Some old threads people claim they run 87 all the time with no problems. The most I do once in a while is add 1/3 regular to a premium tank to get 91 as we have 93 here. I usually don't bother though.
Yes, they do mean a minimum of 91. But 91 RON; it says so on the label.
And in the US, pumps advertise AKI, not RON. The conversion is 87 AKI = 91 RON. MB recommends 95 all the time, which is 89 AKI, a medium grade fuel.
It's much more important to keep an eye on the E-rating of the fuel you're using to make sure you're not putting in fuel which contains too much ethanol.
And in the US, pumps advertise AKI, not RON. The conversion is 87 AKI = 91 RON. MB recommends 95 all the time, which is 89 AKI, a medium grade fuel.
Haha good luck with that. Not even the station knows the exact ethanol content of the fuel. Could be 5% could be 10%. All they'll tell you is that it's a maximum of 10 or 15%. Same with octane. Could be 87 octane or more. All they tell you is the minimum. California 87 octane routinely tests in the 89-91 range. It's completely up to chance.
Yes, they do mean a minimum of 91. But 91 RON; it says so on the label.
And in the US, pumps advertise AKI, not RON. The conversion is 87 AKI = 91 RON. MB recommends 95 all the time, which is 89 AKI, a medium grade fuel.
It's much more important to keep an eye on the E-rating of the fuel you're using to make sure you're not putting in fuel which contains too much ethanol.
Your conversion might be off as many claim that converting 95 RON to AKI is 91 not 89 which is why most people put in premium. It's also mentioned in the manual says that if you put in regular instead of premium to take it easy and avoid full throttle and fill up with premium next time.
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.
