Quote:
Originally Posted by Vracer111
~26mpg cruising on the highway means you need better control of your right foot and driving habits. The FR-S should easily get 30mpg average cruising @ 80-85mph...I can get 31mpg cruising @ 85mph on long trips between Texas and Utah in my MT FR-S... it's all about managing the throttle pedal and vehicle inertia/momentum...never slow down or brake unless absolutely needed, and don't use cruise control.
You need to be able to accelerate on downhill sections (while keeping above 30mpg average under acceleration) that lead to uphill sections..trading potential energy for the momentum to get you up the incline. And don't ever drop below 75mph going uphill...you loose that much rpm and it wastes a lot of fuel to get back to 80mph. I use the instantaneous mpg display as engine load indicator - you fine tune the pedal pressure to keep it reading as high as possible at all times.
Keeping between 80-95mph while cruising is the goal; ideally you don't want drop below 80 at any time when climbing - trading built up speed for the push to get you up the incline (you will need to sacrifice 10-15mph), maximize speed going downhill to buildup the necessary potential energy for the following uphill section, and stick to 85 when things are relatively level. Helps to have 80mph speed limit. It's a fun game to time it just right to have your speed drop bottom out at 80mph right when making apogee...and keeping the instantaneous mpg reading as high as possible under all conditions.
|
Sorry, but what you just described is how to be a really, REALLY annoying asshole on the highway. I absolutely HATE people who drive like that. You should maintain a constant speed on the highway, ideally by using cruise control. Otherwise you're just that **** that passes me going downhill, only for me to have to pass them again for the umpteenth time on the next incline. I don't give two hoots about your need to get that extra 1 or 2 MPG. The world doesn't revolve around you, so maintain a constant speed instead of becoming an annoying obstacle for all of the other drivers on the road.
Sorry if that comes across as harsh, but people who can't maintain a constant speed on the highway are some of the most infuriating drivers on the road.
Also, I don't know why you think you have to avoid cruise control to get good mileage. I set my cruise control to 78 MPH and I average 33 MPG.