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Old 04-01-2008, 03:04 PM   #1
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Question My First Post! Questions regarding FE and my Nissan.

Hello everyone, (I have a 1990 Nissan Pulsar NX 1.6L)

I've been concerned about my fuel economy for a few years and would like to get some questions answered. I have been using coast in neutral, sometimes use P&G, light timing techniques for a while.

1. Is there a way to get a scan gauge (similar) item to monitor my fuel consumption? My car is older than 1996 and not on the list.

2. I live in Manitoba where people routinely use block heaters in the cold. Is it safe to block off some or all of my grill? Even past winter? It is a small grille to begin with, and I am unsure if my temperature gauge actually works.

*3. Most importantly probably is I would like to know my most efficient gear/speed. I have 4 banger a 1.6L SOHC engine. Would going 60km/h at 2000rpm (5th) be worse or better than 60km/h at 2200rpm (4th)? Would maybe 60km/h at 3000rpm (3rd) be best? I am not well informed of how the torque curves or whatever work, and know than lower rpm is not always the best option.

Thank you for your time!

Maggio is offline   Reply With Quote
Old 04-01-2008, 04:27 PM   #2
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First, Welcome to GasSavers.

Currently, their aren't any financially viable alternatives to a scan gauge.

On the grill block, most likely you would be fine with a total block in the winter and a block with a 2"*4" opening in the summer. I have an 89 Honda Wagon and I run it with most of the grill blocked. I did notice my electric fan running today, after some highway miles, so I will be opening it up a little.

If you have a temperature gauge, then just keep a close eye on that. If it starts to creep up from it's normal position, open the grill up a little. It doesn't seem to take much of an opening for it to work fine, on my car. I do believe the grill block gives the greatest return for the least amount of effort.

You might want to consider putting your tire pressure higher. At the very least, you should put the max amount the side walls of the tire specify. I've been running about 60 psi in mine, with no problems, for about a year or so, but you should do what you feel comfortable with.

On the gear/speed question, generally, the lower you can keep the rpm, the better the car can do on mileage. However, that presumes you use a very light throttle. At a light throttle, I can go down to about 1400-1500 rpm, in my Honda, but if I need to accelerate, I have to down shift.

Unfortunately, everything about getting better mileage has some relationship to your specific car and how it performs. That is where a scan gauge or something like it would be helpful, I presume. Anyway, awareness and effort are a large part of your options for improvement.

Gary Palmer is offline   Reply With Quote
Old 04-05-2008, 08:17 AM   #3
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Hey thanks for the tips. I may try putting higher PSI in. Last time I did that though the sidewall broke and the whole tire bent (at only 35psi). I think I can handle 1700rpm and will try that in 5th.
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