[mk_sentra]

hi

the speedo shows 45mph at 2000rpm and 70mph at 3000rpm. is this ok?

i used to get poor gas mileage of around 20mpg with 87 octane fuel and that pinging sound while accerlerating. so from then on i started using 93 octane gas with an octane incrementing solvent from prestone making the gas going into the injectors real good quality.

two things

1. this improved my mileage to 24mpg. i was wondering if this is the best i could get from the 92 se-r.

2. In improving the octane rating of the fuel to 93+, am i screwing up anything in my car. its been 3 weeks since i started doing this..


thanks
mk

 

[mk_sentra]

mileage and speedo reading

the speedo shows 104k, and i just got a job 50 miles away from home and i found the gas mileage to be 31mpg on highway compared to 22mpg in city.

are there no miles/hr Vs RPM for a sentra?

thanks
mk