I have an 02 Nissan sentra 5spd 1.8 that I would like to run at a lower rpm when cruising at 80mph. I sits around 3300 right now and seems to be using more fuel than when I am doing 73mph. I know fuel consumption will go up with speed but, the engine seems to have a sweet spot for economy at lower rpms 2500-3000. I have been watching my scangauge and feel a 5th gear change would help in this area. Any ideas on where to get the parts to change just 5th and not the entire gear for the trans? I thought about taller tires but that would affect all gears.
My mpg @ 75 is running right around 35 and I manage to squeeze 41 out of it on my non-stop computer to work around 60mph.
Is it safe to run this engine up at these rpms (3000-3400) for an hour or two at a time? To be safe, I run Mobil1 EP and pur one filter. Any other ideas? Thanks!
My mpg @ 75 is running right around 35 and I manage to squeeze 41 out of it on my non-stop computer to work around 60mph.
Is it safe to run this engine up at these rpms (3000-3400) for an hour or two at a time? To be safe, I run Mobil1 EP and pur one filter. Any other ideas? Thanks!