8 Speed Auto shift points❓❓

[MrZappo]

Is it really "destroying" the engine ? Or you just don't like the way it works ?

I don't like the pinging either and it is cured with mid grade gas on hot days. It it BS that it won't run perfectly as "advertised" with 87. But most probably ignore it and there are not dead pentastars littering the roadways.

As far as the lugging, yep they probably do it for fuel economy as forced to by the overlords.

But does it actually damage the engine ? Meh. I'd wager no.

If you find a way, please let us know although I wouldn't be optimistic. They seem rather tight lipped on that stuff.

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[DAVECS1]

I have completely remapped the shift points on my Gladiator, but I have an unlocked ECM and supercharger. The shift points stock are abysmal.

 

[Scrubb84]

Is it really "destroying" the engine ? Or you just don't like the way it works ?

I don't like the pinging either and it is cured with mid grade gas on hot days. It it BS that it won't run perfectly as "advertised" with 87. But most probably ignore it and there are not dead pentastars littering the roadways.

As far as the lugging, yep they probably do it for fuel economy as forced to by the overlords.

But does it actually damage the engine ? Meh. I'd wager no.

If you find a way, please let us know although I wouldn't be optimistic. They seem rather tight lipped on that stuff.

I’ve run shell high test for a month straight. Mine still pings/rattles in every town no matter what. Temp, rain, etc.
With the higher octane, the detonation is about 50% quieter. But it’s still rattling away.
My thoughts are with constant detonation happening, there is 100% chance it is damaging some shit internally. I don’t think I’m wrong here. Just sayin.

 

[MrZappo]

I’ve run shell high test for a month straight. Mine still pings/rattles in every town no matter what. Temp, rain, etc.
With the higher octane, the detonation is about 50% quieter. But it’s still rattling away.
My thoughts are with constant detonation happening, there is 100% chance it is damaging some shit internally. I don’t think I’m wrong here. Just sayin.

If yours pings with 93 octane you have a more serious problem. Id agree.

Most don't ping on 89 and I've not heard of it happening to anyone on 93.

As I said, there are literally tens of millions of these engines out there that aren't blowing up from lugging or detonation.

Most are fine. If I were you I'd stop driving and get that thing fixed.

 

[Scrubb84]

If yours pings with 93 octane you have a more serious problem. Id agree.

Most don't ping on 89 and I've not heard of it happening to anyone on 93.

As I said, there are literally tens of millions of these engines out there that aren't blowing up from lugging or detonation.

Most are fine. If I were you I'd stop driving and get that thing fixed.

Ha. My dealer/service departments in my area are all less than useless. Last one I brought it to literally said the detonation rattling was rocks in my tires. They are so incompetent it makes me think they just play stupid so they don’t have to try to fix it. All 3 dealers are the same. I can’t afford driving 6 hrs to another dealer just for them to give me the same BS excuses.

 

[MrZappo]

Ha. My dealer/service departments in my area are all less than useless. Last one I brought it to literally said the detonation rattling was rocks in my tires. They are so incompetent it makes me think they just play stupid so they don’t have to try to fix it. All 3 dealers are the same. I can’t afford driving 6 hrs to another dealer just for them to give me the same BS excuses.

Open a case with jeepcares. They aren't fast but they helped when I had an issue. Just be prepared to be patient.

 

[Scrubb84]

Open a case with jeepcares. They aren't fast but they helped when I had an issue. Just be prepared to be patient.

They don’t do anything besides call the dealer. And whatever lies the dealer tells them is what they go off of. I’ve been down this endless road many times with regards to the steering box issue (before it was a known problem & ppl called me crazy).
Time to start this dance all over again.

 

[Scrubb84]

Went from 13 to 18 mpg just by driving it at higher rpms. I would think the opposite would be true, but thats not the case.
wonder if I can get rid of 7th & 8th gear to save weight? Lol

 

[BearFootSam]

Went from 13 to 18 mpg just by driving it at higher rpms. I would think the opposite would be true, but thats not the case.
wonder if I can get rid of 7th & 8th gear to save weight? Lol

It seems counter intuitive but makes sense if you consider the engine will be most efficient when the power output is matched to the load. In my old Subaru I rarely drove in 6th because fuel economy was better in 5th in *most* circumstances. With AT tires and perhaps fighting wind or heavily loaded the RPM in 6th was insufficient to bring the engine into the power band needed to efficiently match load.

For example, when I was ascending a hill, I could either be in 5th @ 2,600RPM giving it 90% throttle to hold speed or drop to 4th @ 3,200RPM providing 70% throttle. The latter condition would increase the instant read-out fuel economy by a small margin. More importantly, turning at a higher RPM as needed actually places less strain on the engine because the pressures should be lower.

Imagine riding a road bike up a steep hill. In a high gear where my pedal RPM was slow, to generate the power needed I would need to apply so much torque to the pedals that I could see the frame flex. If I dropped a few gears and increased pedal speed the torque needed at the pedal was much lower as would be my caloric output.

Continuing to use the bicycle example, in the highest gear I can maintain a very high road speed with relatively low effort because of the very high gear ratio. But as soon as I face a headwind or slight uphill my pedal effort climbs rapidly and makes me inefficient. Modern vehicles are designed with high overdrive gears to maximize efficiency in flat, low-load, high road speed conditions. When you consider that corresponds to a large portion of driving in the US where vast highways predominate, this use case benefits fuel economy numbers.

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