I'm a newbie to my car, with 550 miles so far. I've been trying to be very careful during the breakin period to not exceed 4000 rpm or so. I was stuck behind 2 cars going the same speed next to each other (don't you just hate that), at like 20 miles below the limit. I finally saw a gap and went for it. I gave it a little more gas, especially when the guy in front started breaking for no reason, and all of a sudden, vroooooooooom at probably at least 5500 rpm and engaged what felt like afterburners. It was fun, but did I hurt anything? They say not to exceed 4000 during break-in... is that a hard and fast rule, that for a few seconds you can go higher?
And oh, BTW, are other people getting crappy MPG like about 16 or so in city driving, short trips? Does it get better the more miles go on the car, after breaking in?

That's fine... don't worry about it too much. If you constantly go that high, then there might be a problem.

Yes, I think that you do get 'crappy MPG' for a while... However, I do believe that it gets better. My mileage has gotten better (got my 2k1 SE on 12/8) over time, could be either my imagination or I have gotten used to when to shift.

I wouldnt sweat it. In fact you probably want to operate the engine at a wide variety of revs throught he breaking period. Just don't o it all the time and don't redline.

You are better than I was. I'm at 3700 miles but I when I was breaking in my 2k Max I had to floor it a couple time. come one you did too didn't you fess up! fess up!

I will admit it, I was bad.

It was not my fault though, all those v6 accords
and grand prix's where looking to test out my car

The mileage will definitely get better, but never the advertised 28mpg if you're taking "short" trips in the city... From what I've heard on these boards, you won't see that kind of mileage until you have at least 15 minutes of good warm-up... (until then, your car runs a special warm-up "program" which runs a very "rich" mixture through the engine, giving you horrible mileage...)

Otherwise, maximum mileage would occur under normal highway conditions, going a steady 50-55mph... (preferably with cruise engaged)


-Tom

MPG/warm-up...
 

I know this whole MPG issue came up a lot before. But what I didn't ask before was, does this same 15 minute warm-up program apply during the day when I see my coolant temperature gauge is already in the middle (i.e. warm) once I've already driven it in the morning?

You guys are too easy! I went WOT on the first drive home about 20 times and dynoed the car at 300 miles. I then proceeded to make about 100 1/4 mile passes in the first 10,000 miles of the car's life. All is well......so far...Im now at 15k :D

I just hope that Nissan cant read how many times the car has hit the limiter ;)

hehe...Actually, I believe that the ECU keeps certain stats such as maximum speed reached and revs in memory. Scary isn't it :shock:

at least there is no GPS sensor to tell what road you were on... yeah I was at a track when I hit 110.. I swear!

Was the 203hp/191lb-ft dyno run when you were stock or with the mods. Just wondering what the Max can do bone stock to the wheels.

I too couldn't keep from stomping on the gas! Especially, when I looked down and saw exactly 1000 miles on the odometer in less than 2-weeks. Damn!

I think stock 5sp Maximas have dynoed around 190 hp to the wheels. I remember someone mentioning that before. The autos are probably around 170 or 175 hp stock at the wheels.

my mileage got worse. I thinks its cause all the things i put in my cay.The first time with a full tank i went around 450 miles.Now i get bout 325 on a full tank.