Without accelerating, Nissan 350Z owners manual says you can run 6th gear 35 mph and up.

 

My manual says 33mph.

 

Keep in mind that is probably assuming flat roads at sea level.

I personally wouldn't recommend it if you are above sea level in a hilly/mountainous environment. I live in Georgia, and routinely travel roads with a 45 MPH limit, cruising in 6th. Just about every time someone slams on the brakes to turn (no signal, of course), I feel the car bog and have to shift on even the smaller inclines. I do have an 06 with slightly less low end torque, so that may be the factor for me.

I think the best thing to do is for each individual to be aware of how the car feels in the driving conditions they are in to decide whether to go to a lower gear.

 

Lol. First you corrected me when I wrote 6700 RPM instead of 6600, and now 33 mph instead of 35.

Personally, I have the Z in 6th anything over 35-40 MPH, assuming the road is flat. And the Z has enough torque to make it up small inclines without flooring it at that speed. But don't worry, I go WOT everyday merging onto the highway.

 

lol no worries im just an analytical bastard/dweeb if it wasn't obvious

I totally agree with you anyway...

 

engine's the last thing that goes before you get tired or your car and everything else breaks.. so I would worry too much about it.

 

getting on it often is a good idea for the purpose of preventing vcarbon build-up. These engines were made to run at high rpm's consistantly. I would NOT hit your rev limiter everyday though obviously. Carbon build-up is more of a problem on BMW's (M3's) which is also why they dont let them sit in one place to warm up for very long. Im sure theres other reasons why getting on it from time to time would be a positive thing but hey im no mechanic.

 

i usually only drive the Z on the weekend. this thread has made me look forward to driving her even more.