- Banned
- #76
Fun fact:
2-stroke engines typically need no greater than 67 octane rating (R+M)/2
In some mostly tropical countries, which coincidently I would guess are low elevations use 83 and 85 octane rating (R+M)/2.
Russia used to sell unleaded 78 octane but I cannot find any current or recent reference.
Most countries do not use the (R+M)/2 "average" number. They just use the higher R number at the pump.
So in Germany you'll see 98 on the pump which is the same gas as 93 in the USA & Canada.
Note: Most countries do sell a little higher octane than the USA does. By 1 or 2 points across the board. It got me pondering why.
Probably their fleets are mainly very small engines, and USA & Canada have comparatively large engines.
2-stroke engines typically need no greater than 67 octane rating (R+M)/2
In some mostly tropical countries, which coincidently I would guess are low elevations use 83 and 85 octane rating (R+M)/2.
Russia used to sell unleaded 78 octane but I cannot find any current or recent reference.
Most countries do not use the (R+M)/2 "average" number. They just use the higher R number at the pump.
So in Germany you'll see 98 on the pump which is the same gas as 93 in the USA & Canada.
Note: Most countries do sell a little higher octane than the USA does. By 1 or 2 points across the board. It got me pondering why.
Probably their fleets are mainly very small engines, and USA & Canada have comparatively large engines.
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