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You are watching: 2001 dodge ram 1500 5.9 mpg

Hello,I to be a Career marine stationed with MATSG 21 in NAS Pensacola. Ns drive a 2001 Dodge ram 1500 SLT 4WD 5.2L. I have actually 76000 miles on it. Cannot talk to the previous owner together he is deceased. Purchased mine ride off of EBAY. Wish I had purchased the 2500 (better) or 3500 (most preferred) Turbo Diesel 4WD w/standard transmission. Either among those two trucks would certainly have much better suited my needs. Having troubles getting better highway mile though. City and Highway mileage room the same. In between 13 ~ 13.5 MPG. Go a tune up (Fram waiting Hog only non OEM component replaced) and adjusted the clutch fan per the pointer of Autozone. Anybody out there that can assist me? Thanks and Semper Fi!!!!Mike sends
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A MPG test over a roundtrip the a ar of I40 at a stable 70 mph showed0.7 MPG worse without the Ram"s stock front bumper wait dam, than v thestock air dam in place. Other 2500/3500 Diesel ram owners have actually reportedbetter MPG after acquisition off their air dam on the TDR website - however those testsdid not seem to be closely done.I have actually recently had actually some aerodynamic success v home-made little aluminumtabs dubbed "Wheeler Vortex Generators". I an installed 5 just behind the next cabwindows, and also another 5 just in former of the behind brake lights. These improvedmy coasting rate down a 6% class hill by 2 mph, and additionally improved MPG at asteady 70 mph by 1 mpg.I had actually previously do the efforts this advertisement product ~ above the roof that the truck, butit walk notappear to work-related in my check runs:
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The vortex generators ns made were reduced from 5 inch by 7 inch aluminum"flashing" from residence Depot. You reduced the flashing right into 3 and also 9/16th inchcircles, and then bending the political parties up to type the "wings". A circle of coursehas 360 degrees. The front of the wings take up 107 levels of the circle,and the ago takes up 22 degrees. I provided 3M "Super Strong" the end mountingtape indigenous Target to stick the vortex generators to the truck"s sheet metal.The finished product looks choose this:
I to be still testing with the Wheeler Vortex generators. I have actually tried bendingdimes right into tiny ones because that the mirrors - however no measureable change. I have actually alsotried tiny 1.5 inch ones on the bottom of the lamb airdam - felt an ext stablebut MPG tests showed worse results. The ideal results have actually been top top the sides ofthe cab and also on the sides of the pickup bed front of the tail lights. Thisinexpensive mod have the right to be great for much better MPG particularly at greater speeds.It has arisen to me that v a warmth gun to soften the plastic you couldmakethese vortex generators the end of the assorted sized computer system CD"s or DVD discsbutI have actually not tried that yet.There is also a advertising vortex generator dubbed "Airtabs" that is perhapsa little lower in drag 보다 a residence made Wheeler type. This are obtainable inblack, white and also clear plastic. They room $3 each.


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TIRE MODSIncreasing the air pressure in your tires, and picking a small "rib tread"commercial shipment truck form tire that has actually low roll resistancedefinitely will help MPG.Raising the air press by 15 psi come the max 70 psi in Goodyear WranglerHT 235/85R16E tires raised my mpg by +1 in a 311 miletest operation - but the ride to be bone jarring. A narrow, highway rib tire favor theHT offers the lowest rolling resistance. Wide, aggressive tread tires have the right to bethree time harder to roll. It can pay to have actually a 4 tire collection for the weekdaycommute, and a weekend mudder large tire set.Consumers Reports is the just organization I know of that tests for rollingresistance the tires.Quote native CR:" Fuel mileage at a price. Part tires role with less drag than others. Thelower a tire"s rolling resistance, the more fuel you can save. Those savingscan it is in significant. Pickup and also SUV Tires through the shortest rolling resistancedelivered virtually 2 mpg more at a stable 65 mph in our highway tests 2003four-wheel-drive Ford explorer XLT 4x4 보다 those through the highest rollingresistance. The catch: While part high-scoring tires had low rollingresistance, most tires through the lowest rolling resistance additionally had loweroverall scores."In your 11/2004 Pickup & SUV tires test CR thelowest rolling resistance tires rated "excellent" to be the:Bridgestone Dueler H/T (D684)Michelin overcome TerrainContinental ContiTracBF Goodrich Radial long Trail T/AThe Pickup & SUV tires through the worst rolling resistance to be the:Pirelli Scorpion STAKelly Safari SignatureYokohama Geolander H/T-SG051A tire v a "very good" rojo resistance and also high scores in various other handlingand braking tests to be the Hankook DynaPro together RH03The California Air sources board is pressing the tire service providers to makerolling resistance measurements on tires freely easily accessible to the public by2008, one of the few worth while points CARB has ever before done in my opinionThe reduced profile 17 and also 20 inch tire designs used on the 2003-20055.7Hemi Rams have a "sticker" tires tread and higher rolling resistance thanearlier year Rams. It is probable that if a manufacturer makes available a235 85 R17 tires in LoadRange E it would certainly be lower rolling resistance than the share tires and also mightimprove MPG by 1-2 at 70 mph.The 2006 Ram press release claims the new model will have actually "low rollingresistance tires."ENGINE, LUBRICANT, EXHAUST & DRIVETRAIN MODSSwitching to synthetic lubricants - - engine oil, diff, Amsoil C+ Mopar-spectransmission fluid, and syn greases in wheel bearings is an excellent for 2-5% MPGimprovement. The is only around 0.5 mpg but every little bit helps.Larry Shepard to write in the "Magnum Engines" publication published through Mopar Perf thatrunning engine oil and transmission ATF level 1-0.5 quarts listed below the "add"marks top top the dipsticks can increase MPG slightly as result of less oil drag. If youdo this, friend must inspect levels very frequently to check out that you don"t drop oillevels even lower into the "danger zone."Another "non-sexy" yet effective way to increase mpg is to save an electricblock heater on while the van is parked. The dodge PCM computer richens themixture until the coolant temperature it s okay to 147 levels F. By keeping theblock heat the engine goes right into the much more fuel efficient "closed loop" controlsooner. This MPG innovation works best on trucks the do brief trips. In ~ 8cents per kw-hr electric rates, running a 700 watt block heater for 8 hrscosts 45 cents.I changed out my initial 3.55 differential gears on my 1995 lamb 5.9V8 46RHauto to some $75 new-in-box (but 20 years old) Mopar people of 3.21 ratio inhopes of far better mpg. I got around a1 mpg improvement at 70 mph. Quarter mile times acquired worse by 0.75 second. My5.9V8 currently accelerates about like a 5.2, but has around a 5 mph increase in topspeed in third gear as the equipment ratio is an ext matched to height hp. There is alsoless engine noise while driving.The performance Trends software Fuel economic climate Calculator predicts that above 74mph a entirely stock 1995 ram 5.9V8 gets best MPG with a 3.55 diff gear, butthat if either the van slows down listed below 70 mph, or the aerodynamics of thetruck are improved with such things as a tonneau bed covering or vortexgenerators, climate a 3.21 diff equipment gives far better MPG.Note the on the 5.7Hemi v the brand-new auto trans the overdrive equipment ratio wasmade "taller" to 0.67 indigenous the old 0.69 at the same time the the 17 or 20inch wheels & tires were made larger in diameter. This has an result likechanging indigenous 3.55to 3.21 in the experiment above. The 2006 hem Rams with MDS come v afactory traditional 3.21 differential ratio.A much less restrictive muffler can aid a wee little bit on a Ram. Ns switched indigenous thestockstainless steel muffler come Walker"s "QuietFlow" form made of aluminized steeland gained about +1 mpg and also dropped 0.2 seconds from the Q"mile. The QuietFlowis as quiet as the share muffler and also has a "Helmholz Resonator" section to getrid of "Drone" in ~ highway speed rpms like the share muffler had. Pedestrian alsoowns DynoMax, and the technology on the telephone told me the DynoMax is around 10%lessrestrictive than the QuietFlow yet much louder. ~ 15,000 miles, myQuietFlow started to rattle and also I had to squeeze out a dent in it v a largeC-clamp to prevent the noise.I later replaced the QuietFlow through a 30 inch long "straight through" DynoMaxUltraFlo Stainless stole 2.5 customs in, 2.5 inch out.http://www.dynomax.com/mufflers.stmpart number 17298. This cut the vast open throttle exhaust backpressure indigenous 7psi come 5 psi. This reduction in backpressure only yielded a acquire of about 0.2MPG. The Ultraflo 17298 was a small louder 보다 both the stock muffler andthe QuietFlow yet just barely. Regrettably it had actually a "drone" at approximately 1800rpm since it walk not have the Helmholtz Resonator section choose the previoustwo mufflers. Ns later had to add an additional 16 inch long UltraFlo in ~ thevery end of the pipe together a guideline to eliminate the 1700-2000 rpm resonance whencruising in overdrive. If you have actually a muffler there is no the Helmholtz Resonatorsection you must avoid having your tailpipe size from muffler outlet toexhaust pipeline tip anywhere near 66 customs - otherwise it will certainly make this "dronenoise" the same means a church body organ makes a deep tone through a special length ofpipe. Make her tailpipe one of two people much much shorter or much longer.I likewise moved mine exhaust outlet to confront rearward. A rear facing exhaust oulethas a really very tiny "jet engine" press to the - notification most cars exhaustbackwards - however trucks the pull trailers need a next exhaust to safetyexhaust carbon monoxide away from wherein it might causea deadly build up inside a camper.On the 5.7 hem Rams, the big exhaust pipeline sizes, muffler and also resonator arealready fairly low restriction.Headers are heavily advertised as helping MPG - a psychologically trick thathelps create sales - but in most situations headers don"t execute much due to the fact that theprimary pipe on them are too short. Countless headers are put on at the same timeas brand-new less restrictive exhausts - and the header gets the credit for what thebigger muffler actually did.If you carry out buy a collection of headers, try to acquire a custom collection with major pipelengths about 42-46 inches and don"t problem if the major diameter isanywhere from 1.375 to 1.750 inches. This is in line v what Larry Shepardfound works ideal on the street v Mopar smallblock V8s, and it likewise agreeswith the approximates of the PerformanceTrends software regime "Engine Analyser3.0" around getting talk gains from 1500-2000 rpm and then again from3800-5000 rpm. The quick primary pipeline lengths that most header carriers sellgive gains from 4000-5000 rpm only and also don"t really enhance MPG in day come daydriving. To get the most MPG gains indigenous a set of 42-48 inch main pipeheaders girlfriend would also need to adjust your differential gears to a lowernumerical number - prefer 3.55 down to 3.21 - to exploit the extra torquenow available at the reduced rpms.A carefull MPG test of a 1995 1500 SB CC Ram through the 5.9V8 in ~ (3.21 diff)with and without the "viscous clutch" radiator fan chisels showed a 0.8 MPGimprovement there is no the fan. No overheating occured in this stable 70 MPHtest run over 212 miles.There was also no sign of overheating at stoplights or city driving inmild winter temperatures. Number of Diesel ram owners have actually posted that they canrun there is no a pan in winter and gain 0.5 to 1 MPG.With the electrical fan & clutch pan combo on the 5.7 hem Rams that is probablethat the clutch fan can be removed for all however the hottest weather or towingservice.Weight palliation is supposed to enhance City MPG whereby acceleration dominates.The dominance of ignorance is" A 10% palliation in weight returns a 6% advancement in City MPG."So 540 lbs off a 5400 lb Ram can increase 14 MPG come 14.8 mpg.At a secure 70 mph however, a 10% rise or diminish in weight just affectsMPG by around 3%.The US army is providing some of your taxes dollars come Ford as a Research provide totry out means to cut the load of a pickup truck by 25%.Aluminum wheels save 40 lbs total. New Aluminum Magnum heads conserve 46 lbs.Aluminum diff and rear axles saves 150 lbs. Fiberglass leaf springs conserve 75lbs or monoleaf stole springs conserve 40 lbs. Carry out Google searches because that "monoleafspring" or "fiberglass spring" to discover suppliers who can make such springs forRam pickups.Do girlfriend really need that behind bumper - space damaged bumpers much less expensive toreplace than damaged paper metal?Optima batteries room usually 10-20 lbs lighter 보다 conventional.It is possible that "Rhoads" layout variable hydraulic lifters set up on aMagnum engine would rise MPG by opening the exhaust valve later and also nearerbottom dead center and closing the intake valve sooner. One lamb owner v aheavily amendment 406 stroker Magnum V8 measured a 3 MPG obtain when Rhoadslifters to be installed, but his camshaft was pretty "wild" to the suggest thathe only had 7 customs vacuum in ~ idle originally and that boosted to 11 inchesof vacuum after ~ the Rhoads lifters to be fitted.http://www.rhoadslifters.com/new_products.htmlA "RV" grind camshaft v lesser duration walk this too.This gets the last little bit of energy out of the combustionpressure, increases 1500-2500 torque, yet it also hurts greater rpm horsepower.Higher compression ratio pistons room a reliable means to get far better MPG.Usually this way you have to purchase more expensive higher octane gasoline.Raising the compression proportion from 9 come 9.5 is estimated to offer 1% betterMPG. ~ above a Magnum 5.9V8, an altering the stock head gasket thickness of 0.047inches come a Cometic 0.025 gasket will certainly raise the compression ratio from 8.9 to9.3. Replacing the share 5.9V8 pistons (with your -13 cc depressions in thecrowns) with flat top pistons the compression elevation 1.626 inches will raisethe compression proportion from 8.9 come 10.2 Using flat top 1.67 inch compressionheight pistons will certainly raise the compression ratio from 8.9 come 11.3This webpage has difficult to uncover details about compression ratio increases frommilling cylinder heads of miscellaneous sizes and makes.http://home.isoa.net/~mharrisj/mill.htmlJim McFarland is an advocate of modifying piston tops. His design for the 4.00inch Chevy 350 piston might easily be applied on level top Magnum 5.2 pistons: