How the FUCK do I figure out the most fuel efficient motorway cruising speed for my car?
How the FUCK do I figure out the most fuel efficient motorway cruising speed for my car?
>he cares about the environment
wew
>How the FUCK do I figure out the most fuel efficient motorway cruising speed for my car?
Peak torque in top gear.
>posts an ugly cow
Opinion discarded
Staying around 60-70mph most likely.
fuck off back to /v/ shitter
who is this lovely creature with perfect proportions?
The "peak torque in top gear" is a meme pushed by rotary faggots.
There's two things here. Your engine has a peak fuel efficiency rpm somewhere. That would be the ideal number, theoretically, but the true number is going to be solved by taking into account vehicle drag. The drag will go up exponentially as speed increases, so go slow within that optimal engine efficiency rpm.
Lurk moar on Fuelly and ecomodders forum. Get a Scan Guage or other OBD-II real-time diagnostics reader that measures instant MPG. Those sites will recommend good hardware.
That said, extensive effort in fuel efficiency is mostly an exercise in futility. Assuming 15k miles driven annually and fuel at $2.50/gallon, the difference between 30 and 31 mpg is about $40 per year. A hundred other factors could effect that difference, so the difference is ultimately negligible. Buy a somewhat efficient car, keep it in good shape, don't drive like a dick, and don't obsess over a few dollars in gas.