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Mar 28th 2019, 01:16 PM | #1 |
Jan 2016 Hazel Dell, Wa Honda VFR800, Husqvarna TE 610, Ducati Hypermotard 1100S, Suzuki VStrom 650, Yamaha Radian, MZ 125SM | ![]()
I see it all the time, folks pull into a gas station and either the attendant or they themselves, assume they need premium fuel. It's really not always necessary and you might just be wasting your money. Here's a recent article which gives an explanation: https://www.revzilla.com/common-trea...-octane-rating regarding octane rating. But it ultimately boils down to what the manufacturer recommends and it would behoove you to look in the owners manual to find out. The important piece is that RON does not equal MON and we don't use either- instead we use the average of both. Research Octane Number (RON), used in Europe and most of the world Motor Octane Number (MON), and where as the US octane rating is an average of (RON+MON)/2 Here is a chart I found for a quick converter to know what your bike really needs after you've check your owners manual, if it doesn't match what the US typically offers. Octane rating conversions - PencilGeek's BMW Blog Octane rating conversions By PencilGeek on May 7, 2009 7:35 PM Here's a set of conversion tables I worked up for octane ratings. The European octane rating is RON, where as the US octane rating is an average of (RON+MON)/2. The following table comes from the following web site: http://www.btinternet.com/~madmole/R...RONMONPON.html Actual octane rating table EURO RON MON US: (R+M)/2 90 83 86.5 92 85 88.5 95 87 91 96 88 92 98 90 94 100 91.5 95.75 105 95 100 110 99 104.5 Formula for converting EURO to US rating I've also come up with a pretty good formula that approximates US octane rating based on EURO RON rating, and visa versa. The formula is US=RON*(21/22): EURO RON US (R+M)/2 90 85.9 92 87.8 95 90.7 96 91.6 98 93.5 100 95.5 105 100.2 110 105 Formula for converting US to EURO octane And reversing that forumula, wet get: RON = US*(22/21) US (R+M)/2 EURO RON 87 91.1 88 92.2 89 93.2 90 94.3 91 95.3 92 96.4 93 97.4 94 98.5 95 99.5 96 100.6 97 101.6 98 102.7 99 103.7 100 104.8 |
Mar 28th 2019, 02:39 PM | #2 |
Jan 2016 NW Oregon R1200ST, CB350 |
A few thoughts, for whatever they're worth.
![]() Edited by WarpShatner7 on Mar 28th 2019 at 08:38 PM |
Mar 28th 2019, 06:13 PM | #3 |
Jan 2016 Portland 2012 Ninja 250, Tiger 800 |
Mine wants regular, but premium is the only grade I can get without ethanol around here, so sometimes it gets that.
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Mar 29th 2019, 03:43 PM | #4 |
Mar 2018 Gig Harbor 2008 BMW R1200GS Adventure |
When I first got my R1200GSA, I rode it on the tank of gas the previous owner had put in it for about 3 or 4 days. At the time, I didn’t realize Premium was recommended, so I filled up with regular. The next day I called the guy to ask if he always filled it with Premium because the motor seemed to be riding tougher. Like Warp said, it’s not so obvious that you’re sure there’s a difference, but it was a big enough difference that I called the guy to ask what fuel he had used. |
Mar 29th 2019, 04:35 PM | #5 |
Jan 2018 near the Socialist Republic of Seattle '13 BMW S1000RR |
The conversion puts me between the top two grades at 90.7 (US). Pisser!
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Mar 29th 2019, 07:40 PM | #6 |
Sep 2017 milwaukie oregon gsxr600 gsxr750 gsxr1000 i like gsxrs |
Mine says premo so i use it, usualy only topIng off the tank with 2-3 gallons... i got the other 60 cents.
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Mar 31st 2019, 08:04 AM | #7 |
Jun 2018 LaCenter Washington 83 Suzuki GS 1100E |
For all my years and around 50 specialty cars and 10 or so motorcycles I’ve never used premium except in 3 race cars. All BB Mopar one 500 inch Hemi with 15-1 compression.Other two were 11-1 440s. I used a mix with octane booster. The rest including my 83 GS1100E and 82 Seca 750 I use the cheapest ARCO regular I can get. Never an issue. My buddy can’t seem to get by with anything other than non ethanol premium on his old Buick’s. He won’t use ARCO so I kid him that it works fine for me and I even cut it occasionally with lighter fluid.
Edited by Riki5156 on Mar 31st 2019 at 08:10 AM Reason: Text |
Mar 31st 2019, 08:35 AM | #8 |
Jun 2016 Poor Tortured 2019 Nada |
gas. archer-daniels.. pfft. i almost got a tuono but they have plastic tanks and ethanol kills them quick. shame. corn is for food. those fuckers. |
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