8.5 MPG on a Stock 5.9 Gasser. Possible to improve MPG?
#11
Good suggestion, I’m going to “guesstimate” and say that my temp sits at around 180 when the truck is warmed up and stays pretty consistent. I’ve considered a 195 but wasn’t sure if it was worth it or not? ALSO, I’m not even sure if it’s overkill for my truck - but that Hughes airgap intake looks to be pretty promising. I’ve heard there is some MPG’s gained with it as well. I am wondering if it’s worth it to install that intake as well.
Smaller tires it is! I’d like to throw on some 17’s. A 245/65r 17 should be almost equal to the 225/75r 16 so I don’t think it would be an issue. Also good suggestion on those O2 sensors! Will put that on my list of things to do…
I hit OD pretty early it seems. Gradual acceleration I seem to hit OD at like 55 or thereabouts. But if I am accelerating to get on the freeway it kicks in closer to 65/70. I don’t like the big tires. Gonna go down to a size closest to the factory.
Smaller tires it is! I’d like to throw on some 17’s. A 245/65r 17 should be almost equal to the 225/75r 16 so I don’t think it would be an issue. Also good suggestion on those O2 sensors! Will put that on my list of things to do…
I hit OD pretty early it seems. Gradual acceleration I seem to hit OD at like 55 or thereabouts. But if I am accelerating to get on the freeway it kicks in closer to 65/70. I don’t like the big tires. Gonna go down to a size closest to the factory.
#13
Good suggestion, I’m going to “guesstimate” and say that my temp sits at around 180 when the truck is warmed up and stays pretty consistent. I’ve considered a 195 but wasn’t sure if it was worth it or not? ALSO, I’m not even sure if it’s overkill for my truck - but that Hughes airgap intake looks to be pretty promising. I’ve heard there is some MPG’s gained with it as well. I am wondering if it’s worth it to install that intake as well.
Definitely change to a 195. Besides using more fuel than necessary, you're also ruining your catalytic converter. The extra fuel is heating it up. In the future, it may melt inside and you'll have to replace it to stay within emissions compliance. That's one thing about Southern Indiana. Nobody bothers you on that. In California though, that isn't the case.
#14
#15
#16
Took the truck on an hour long drive and back (2 hrs total, 130 miles) and was able to take better note of the truck’s behavior. So gradually accelerating (no heavy foot) when my speedo shows 50 MPH the RPM’s drop to 1500 and the truck seems to “lose power.” You can still keep accelerating, but it’s VERY slow and unless you punch it to activate the kickdown you won’t get up to speed really fast. If you’re doing a harder acceleration the truck wont go into OD until you let off and in my case, I like to cruise on the freeway about 72 MPH. So when my Speedo shows 65, I’ll let off and OD kicks in. I can keep constant speed but on hills I really have to lean into it to keep up. Again, in OD I’ll have very slow acceleration and unless I punch it and kickdown activates it’ll climb the hill like it should.
My Ram is a 2WD. Im really stumped on the rear gears now. After decoding my tag, it says 3.21. However, after using my phone’s GPS to take us back home from today’s trip - it told us we were 56 miles away. So I did the mental math and added 56 to the odometer which was 127,834. I got 127,890 - Lo and Behold, we arrived home and the odometer read 127,890. Shouldn’t I technically be showing less miles traveled with the wrong tire size? Dunno if any of that made sense at all. Still; my Speedo is off and per the tire size calculator online - the difference in what my Speedo shows versus how fast I’m actually going is correct. (When I travel 60 I’m really goijg 67 etc etc.) Does this make any sense ? I’m stumped
Definitely change to a 195. Besides using more fuel than necessary, you're also ruining your catalytic converter. The extra fuel is heating it up. In the future, it may melt inside and you'll have to replace it to stay within emissions compliance. That's one thing about Southern Indiana. Nobody bothers you on that. In California though, that isn't the case.
You need that 195 degree thermostat in addition to either a rear end gearing change (assuming the truck is 2WD - if 4WD, the front and rear gears will need changing to the same ratio) if you're going to keep those tall wheels/tires or swap out to something closer to stock wheel height
My Ram is a 2WD. Im really stumped on the rear gears now. After decoding my tag, it says 3.21. However, after using my phone’s GPS to take us back home from today’s trip - it told us we were 56 miles away. So I did the mental math and added 56 to the odometer which was 127,834. I got 127,890 - Lo and Behold, we arrived home and the odometer read 127,890. Shouldn’t I technically be showing less miles traveled with the wrong tire size? Dunno if any of that made sense at all. Still; my Speedo is off and per the tire size calculator online - the difference in what my Speedo shows versus how fast I’m actually going is correct. (When I travel 60 I’m really goijg 67 etc etc.) Does this make any sense ? I’m stumped
#17
Took the truck on an hour long drive and back (2 hrs total, 130 miles) and was able to take better note of the truck’s behavior. So gradually accelerating (no heavy foot) when my speedo shows 50 MPH the RPM’s drop to 1500 and the truck seems to “lose power.” You can still keep accelerating, but it’s VERY slow and unless you punch it to activate the kickdown you won’t get up to speed really fast. If you’re doing a harder acceleration the truck wont go into OD until you let off and in my case, I like to cruise on the freeway about 72 MPH. So when my Speedo shows 65, I’ll let off and OD kicks in. I can keep constant speed but on hills I really have to lean into it to keep up. Again, in OD I’ll have very slow acceleration and unless I punch it and kickdown activates it’ll climb the hill like it should.
My Ram is a 2WD. Im really stumped on the rear gears now. After decoding my tag, it says 3.21. However, after using my phone’s GPS to take us back home from today’s trip - it told us we were 56 miles away. So I did the mental math and added 56 to the odometer which was 127,834. I got 127,890 - Lo and Behold, we arrived home and the odometer read 127,890. Shouldn’t I technically be showing less miles traveled with the wrong tire size? Dunno if any of that made sense at all. Still; my Speedo is off and per the tire size calculator online - the difference in what my Speedo shows versus how fast I’m actually going is correct. (When I travel 60 I’m really goijg 67 etc etc.) Does this make any sense ? I’m stumped
My Ram is a 2WD. Im really stumped on the rear gears now. After decoding my tag, it says 3.21. However, after using my phone’s GPS to take us back home from today’s trip - it told us we were 56 miles away. So I did the mental math and added 56 to the odometer which was 127,834. I got 127,890 - Lo and Behold, we arrived home and the odometer read 127,890. Shouldn’t I technically be showing less miles traveled with the wrong tire size? Dunno if any of that made sense at all. Still; my Speedo is off and per the tire size calculator online - the difference in what my Speedo shows versus how fast I’m actually going is correct. (When I travel 60 I’m really goijg 67 etc etc.) Does this make any sense ? I’m stumped
My speedometer reads high too. I think someone had taller tires and adjusted the sending unit. My temperature gauge was reading where yours is when I tore it down for a major tune up. It never warmed up and had a 195 unit in it. The timing chain had enough slop it never warmed up. It warms up fast now and the one time I had the heater going it was much warmer than last winter.
You can check your chain for slop. It's fairly labor intensive but it will tell you if you need a new chain set. This is easier if you remove the fan shroud. Rotate the engine by hand until the timing mark on the balancer is at TDC. Compression or exhaust, it makes no difference. Pull the distributor cap and mark the location of the rotors with soap stone, paint marker or anything EXCEPT a pencil. The graphite in a pencil will cause shorts and a misfire. Once you have everything set, rote the engine backwards by hand. When the rotor starts to move, stop. Measure how far it went3 or 4 degrees is no big deal.10 degrees though, your chain is worn.
Your temperature gauge should read closer to the center mark around 200 degrees. Timing being off will cause this. I had a '94 Ram 1500 with the V-6 and it went from 15 mpg to 23 on the highway and heat would cook you after a new timing set.
#18
Are you sure you put in a 180 stat and not something lower? I have a 96 and the temp gauge reads different(200 is where your 210 is) and mine will stay just under 200 warmed up with a 180. Yours looks lower than where it should be. You can verify it with a scanner. You are in the same climate zone as i am so you really don't need the 180. I put one in because it won't stay below 200 in the summer. This is because aftermarket radiators have less fins than the original but that's another story. You can fool the pcm by putting in a resister if you relay want to keep the 180.
#19
Are you sure you put in a 180 stat and not something lower? I have a 96 and the temp gauge reads different(200 is where your 210 is) and mine will stay just under 200 warmed up with a 180. Yours looks lower than where it should be. You can verify it with a scanner. You are in the same climate zone as i am so you really don't need the 180. I put one in because it won't stay below 200 in the summer. This is because aftermarket radiators have less fins than the original but that's another story. You can fool the pcm by putting in a resister if you relay want to keep the 180.
#20