Amanda-
Are you running the dashboard in liters/km? If so, then when the instantaneous fuel consumption display goes towards zero, you are burning less fuel. Is it a 5 speed? You are probably simply going into lean burn mode. I assume that the tachometer is not also dropping almost to zero. Is it really a "jolt"? On a flat stretch of highway, at about 90 km/hr, gently ease off of the accelerator, trying to keep the speed almost the same, but letting the fuel consumption decrease. The engine will switch into lean burn mode and the FCD should go down (up in mpg) while almost maintaining speed. This will be easier if the a/c is off, no rain, not cold out.
On the fuel, the Insight was designed to run on regular fuel (about 87 octane) so you don't need to buy the premium - save your money. The "name" brands may have different additives so it might be worthwhile to buy Amoco or Exxon etc instead of the discount places, but many people just buy gas where it is least expensive and do fine. If you buy "cheap" gas and it doesn't run as well, try something else (600 miles later)
.
Good luck.
Jim
Are you running the dashboard in liters/km? If so, then when the instantaneous fuel consumption display goes towards zero, you are burning less fuel. Is it a 5 speed? You are probably simply going into lean burn mode. I assume that the tachometer is not also dropping almost to zero. Is it really a "jolt"? On a flat stretch of highway, at about 90 km/hr, gently ease off of the accelerator, trying to keep the speed almost the same, but letting the fuel consumption decrease. The engine will switch into lean burn mode and the FCD should go down (up in mpg) while almost maintaining speed. This will be easier if the a/c is off, no rain, not cold out.
On the fuel, the Insight was designed to run on regular fuel (about 87 octane) so you don't need to buy the premium - save your money. The "name" brands may have different additives so it might be worthwhile to buy Amoco or Exxon etc instead of the discount places, but many people just buy gas where it is least expensive and do fine. If you buy "cheap" gas and it doesn't run as well, try something else (600 miles later)
.Good luck.
Jim
