yumaboy Posted August 31, 2009 Share Posted August 31, 2009 i have a bone stock 93 pathfinder v6 xe 4 wheel drive......i am getting 14 MPG in city and 16 MPG on highway....it runs strong but i cant figure out why the fuel consumption is so high....any ideas for better gas mileage??????? Link to comment Share on other sites More sharing options...
adamzan Posted August 31, 2009 Share Posted August 31, 2009 Check / do these things. Air filter Plugs, wires, cap and rotor o2 sensor MAF sensor (clean it) Oil change Tire pressure Adjust Driving habits Should help. Link to comment Share on other sites More sharing options...
yumaboy Posted August 31, 2009 Author Share Posted August 31, 2009 Check / do these things. Air filter Plugs, wires, cap and rotor o2 sensor MAF sensor (clean it) Oil change Tire pressure Adjust Driving habits Should help. all has already been done Link to comment Share on other sites More sharing options...
nunya Posted August 31, 2009 Share Posted August 31, 2009 plus search! I know I have seen this asked once or twice. Could be some suggestions in there adamzan forgot... Link to comment Share on other sites More sharing options...
dhardison Posted August 31, 2009 Share Posted August 31, 2009 I did a few things to my 93 within a week or so of each other last year and together they added about 3 mpg to my city/highway average. Plus added performance I could really feel. 1. put on a high flow cat converter. 2. changed all my fluids, lsd, transfer case etc., 3. installed a set of NGK iridium plugs. 4. installed a K&N stock replacement filter. Probably the converter made the most difference but since I did them all together I don't know for sure. I consistently get 18 combined now and run the climate in auto most of the time. Link to comment Share on other sites More sharing options...
edicer2 Posted August 31, 2009 Share Posted August 31, 2009 (edited) mine doesnt get much better mines 16-18 city, and maybe 20-22 highway Edited August 31, 2009 by edicer2 Link to comment Share on other sites More sharing options...
VegasPathfinder Posted August 31, 2009 Share Posted August 31, 2009 mine doesnt get much better mines 16-18 city, and maybe 20-22 highway Sounds right to me. Link to comment Share on other sites More sharing options...
Precise1 Posted August 31, 2009 Share Posted August 31, 2009 x2 i have a bone stock 93 pathfinder v6 xe 4 wheel drive......i am getting 14 MPG in city and 16 MPG on highway....it runs strong but i cant figure out why the fuel consumption is so high....any ideas for better gas mileage??????? As was said, intake/free flowing exhaust will help some. What transmission do you have, what size tires and what is your driving style like?? B Link to comment Share on other sites More sharing options...
yumaboy Posted August 31, 2009 Author Share Posted August 31, 2009 x2As was said, intake/free flowing exhaust will help some. What transmission do you have, what size tires and what is your driving style like?? B it is an automatic.....with 235/70/15....as far as driving habbits go.....i keep up with traffic....lol Link to comment Share on other sites More sharing options...
Simon Posted August 31, 2009 Share Posted August 31, 2009 Replace your Fuel filter. I did on mine, and had a noticeable increase in mileages, and power. Link to comment Share on other sites More sharing options...
yumaboy Posted August 31, 2009 Author Share Posted August 31, 2009 Replace your Fuel filter. I did on mine, and had a noticeable increase in mileages, and power. i replaced the fuel filter 2 months ago...as well as the plugs,wires,timing belt,all vacum hoses,intake manifold gaskets,all fluids and filters and hoses....still no better Link to comment Share on other sites More sharing options...
Simon Posted August 31, 2009 Share Posted August 31, 2009 Check your timing. Did you adjust the spark timing after completing the T-belt change? Link to comment Share on other sites More sharing options...
yumaboy Posted September 1, 2009 Author Share Posted September 1, 2009 Check your timing. Did you adjust the spark timing after completing the T-belt change? timing is dead on Link to comment Share on other sites More sharing options...
westslope Posted September 1, 2009 Share Posted September 1, 2009 The only additional thing I can think of are the tires and air pressure. 4-season, mud&snow tires typically have lower rolling resistence (and work just great for me off-road). I run my Michelin LTX 6-ply tires M&S tires at 35-36 psi. I would assume the wheels are balanced and the front end is properly aligned. Link to comment Share on other sites More sharing options...
Kingman Posted September 1, 2009 Share Posted September 1, 2009 Variance in tire pressure isn't going to drop your fuel mileage anything more than 1 mile per gallon at the most. Link to comment Share on other sites More sharing options...
westslope Posted September 2, 2009 Share Posted September 2, 2009 (edited) Kingman, a 1 mile per gallon increase in fuel efficiency would represent a better than 5% improvement for most pathie owners. Optimistically, a series of incremental improvements will all add up to something that is noticeable. Example: Driving with the windows closed will also improve fuel mileage at the margin. Edited September 3, 2009 by westslope Link to comment Share on other sites More sharing options...
95PATHMAKER Posted September 4, 2009 Share Posted September 4, 2009 i have a bone stock 93 pathfinder v6 xe 4 wheel drive......i am getting 14 MPG in city and 16 MPG on highway....it runs strong but i cant figure out why the fuel consumption is so high....any ideas for better gas mileage??????? Try Seafoaming it, cleaning the Throttle position sensor, EGR valve (make sure when you take it out you replace the gasket, should be like $2), add an oil cooler, snorkel (for cold air intake purposes if nothing else), less restrictive exhaust system (Borla makes a good cat back system), there is a number of things you can do depending on how much you are able to invest in it, but I would start by cleaning the sensors and seafoaming to get as much carbon buildup etc. out as possible so that nothing is more restricted than it was when the Truck was new... http://npora.ipbhost.com//style_images/1/f...icons/icon1.gif Link to comment Share on other sites More sharing options...
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