I'm seriously at a loss here.
I drive the same distance, the same driving habit every day. When I initially got my X, it had 32k on it and was averaging about 260 and the best was 280 to a tank(280 was on a long highway trip).
It has gone downhill since then. I am getting 210-220 miles to a tank, same commute. I changed the PCV valve, Fuel Filter, Air Filter(K&N, to Nissan, to K&N again), reset the ECU, flushed and changed all fluids to synthetic and NADA. It keeps getting worse.
I bought NGK G-Power(platinum) plugs, gapped them to .39 per single tip recommendation. I had them at .44 and it was pinging all over the place(not change in fuel consumption) so re-gapped to .39. Wires were also changed, MAF cleaned, TB cleaned and now am out of ideas.
The truck only has 41,543 miles on it now, and can't stand getting 11mpg's on a mostly highway commute. The truck feels strong, good power and acceleration but no idea whats up with it. Can a distributor go bad with only 41k on it and it being 5 years old? Anything else I can check, can the dealer do adjustments etc? I can't afford to keep dumping gas into it like it is because I am tryin to get a house and the budget will be even tighter. I love this thing!
I will also mention, the Xterra is at stock ride height, had a new pair of tires put on in August. Around October is when I noticed a really big mileage drop and its been going down since then. I was reading that it could be timing but I am not sure how to adjust it as the instructions weren't very well written.
The dealer is my last option and one that I really don't want to take as I know I will be overcharged and have a possibility of it not being corrected. I wouldn't find out until a few tanks of gas either :|
I drive the same distance, the same driving habit every day. When I initially got my X, it had 32k on it and was averaging about 260 and the best was 280 to a tank(280 was on a long highway trip).
It has gone downhill since then. I am getting 210-220 miles to a tank, same commute. I changed the PCV valve, Fuel Filter, Air Filter(K&N, to Nissan, to K&N again), reset the ECU, flushed and changed all fluids to synthetic and NADA. It keeps getting worse.
I bought NGK G-Power(platinum) plugs, gapped them to .39 per single tip recommendation. I had them at .44 and it was pinging all over the place(not change in fuel consumption) so re-gapped to .39. Wires were also changed, MAF cleaned, TB cleaned and now am out of ideas.
The truck only has 41,543 miles on it now, and can't stand getting 11mpg's on a mostly highway commute. The truck feels strong, good power and acceleration but no idea whats up with it. Can a distributor go bad with only 41k on it and it being 5 years old? Anything else I can check, can the dealer do adjustments etc? I can't afford to keep dumping gas into it like it is because I am tryin to get a house and the budget will be even tighter. I love this thing!
I will also mention, the Xterra is at stock ride height, had a new pair of tires put on in August. Around October is when I noticed a really big mileage drop and its been going down since then. I was reading that it could be timing but I am not sure how to adjust it as the instructions weren't very well written.
The dealer is my last option and one that I really don't want to take as I know I will be overcharged and have a possibility of it not being corrected. I wouldn't find out until a few tanks of gas either :|
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