ultrarunner
Epic Contributor
- Joined
- Apr 6, 2004
- Messages
- 24,101
- Tractor
- Cat D3, Deere 110 TLB, Kubota BX23 and L3800 and RTV900 with restored 1948 Deere M, 1949 Farmall Cub, 1953 Ford Jubliee and 1957 Ford 740 Row Crop, Craftsman Mower, Deere 350C Dozer 50 assorted vehicles from 1905 to 2006
If I could get 87without I personally would not waste money on the premium because it will serve you no better that the regular and in 99% of the uses of gas it will actually perform less efficiently than the regular. I have done extensive dyno testing back when I was racing and with almost every engine we tested fuels with they all made more power and better power curves with regular than they did with premium or race fuel. I still laugh when people pay the extra for it when they are driving anything less than a full on sports car that calls for it because of a high performance engine that will never end up in your lawn mower or tiller or even the family sedan.
A lot of higher end European cars require minimum 91 in the states which is lower than what is specified in Europe and as a result the HP of American market cars from BMW are slightly de-rated as it was explained to me.