6.4l 8 speed towing review

You can also browse through some threads at www.ramsforum.com for user impressions of the 6.4.

Like you,I can understand the desire for clean air but the additional responsibilities of owning a new diesel is chasing me towards a gasser as well and the 6.4 is appealing as is an 8spd auto.....I've been looking as we speak.

Just be aware that no gas burner will compete with the low end Torque of a diesel but that doesn't mean we can't own a competant tow vehicle.

I own 3 diesels and they all smoke.... No smoke, no fire, no fire, no power. It's smoking, you just don't see it because the smoke 'soot' is contained in the DPF, cremated with Urea.

All for Obama's clean air initative. Not me.

It's getting great reviews on the Ram forums. The 8spd tranny sounds like a whole new world compared to the 6spd. Guys are talking about hauling up to 15,000# trailers with no problems. Aside from the terrible 6spd my Ram 2500 is a great truck. The 6.4 Hemi is a beast of an engine that, up to this point, has been somewhat wasted in the HD trucks. The 8spd sounds like a total game changer.

I can guarantee that a 6.4L Hemi will put out way more CO2 than a tuned Ecodiesel if your personal reason is to be environmentally friendly. In fact, all gas engines emit more environmentally harmful CO2 than a diesel equivalent. The only thing a tuned diesel with a DPF puts out is a lot of NOx which is only bad if you are in a highly populated with high temps, but will do nothing to you in lightly populated areas with cool temps where it has a chance to dissipate into the stratosphere to become good ozone.

The 6.4l seemed to struggle on ike gauntlet, disappointing the ancient 6.0l GM outperformed it.

Ram will have to answer to Ford new Godzilla/ 10 spd. 500lbft or greater is the new goal.Ford is slow on release of this vital number. It could be much higher.

I suspect Ram will eventually answer the Ford 7.3 / GM 6.6 with opening up the 6.4 to the full 7.0L. (426ci) And 500 foot pounds of torque seems attainable. Buick made up to 510 TQ from 7.4 (455ci) back in the day.

You might also consider waiting until October when both the new 480 TQ Ecodiesel & 3.0 GM diesels should hit dealerships both supporting new dramatically improved emissions systems that should make current emissions ills largely a thing of the past much like early gasoline cat converters compared to today. Obviously enough power to tow your TT only with dramatically less fuel and a quieter smoother ride.

hvac wrote:
The 6.4l seemed to struggle on ike gauntlet, disappointing the ancient 6.0l GM outperformed it.

Ram will have to answer to Ford new Godzilla/ 10 spd. 500lbft or greater is the new goal.Ford is slow on release of this vital number. It could be much higher.

Wasn't this with a pre-2019 6spd tranny? Worlds of difference being reported with the 8spd.

I’m surprised that the AEM is that much of a issue for you. I don’t even notice a difference vs pre update.

Bionic Man wrote:
I’m surprised that the AEM is that much of a issue for you. I don’t even notice a difference vs pre update.

I'm not the only one. Its has complaints to FCA and NHTSA for safety and drivability issues.

mtofell1 wrote:

hvac wrote:
The 6.4l seemed to struggle on ike gauntlet, disappointing the ancient 6.0l GM outperformed it.

Ram will have to answer to Ford new Godzilla/ 10 spd. 500lbft or greater is the new goal.Ford is slow on release of this vital number. It could be much higher.

Wasn't this with a pre-2019 6spd tranny? Worlds of difference being reported with the 8spd.

Yes, both were 6spds and 4.10 gears. The ram struggled...