I am looking to order a new 2023 3500 SRW Limited. I am not sure on the HO. Does anyone have a thought on the HO?
I have a 2022 3500 DRW Limited with the HO engine and the Aisin. Fantastic truck. I am pulling a 17,000# fifth wheel and the power blew me away. This thing will accelerate to pass going up a mountain grade at 65 mph. Unless I'm paying close attention I never notice the shifts. We also use the truck as our daily driver on RV trips (going to the grocery store, trailhead, etc) and, other than the much stiffer suspension, I'd say the driving experience is very similar to my Toyota Tundra. I didn't expect the truck to be this nice.
We have the 4.10 transmission which helps on the acceleration - 10% more power. You don't pay a 10% penalty on fuel economy though. You're still moving roughly the same amount of weight with either rear end. You do have 10% higher rpms at the same speed, but that doesn't translate to 10% more fuel at the same load. I don't have any empirical evidence, but I've always felt that a smaller engine can use more fuel than a larger one at the same heavy loading.
There is a 20 mile flat stretch of interstate that I drive for fuel economy tests. With no wind, at 65 mph, the truck's mpg gauge shows 19-20 mpg. However, based upon fuel filling records, I think the fuel economy gauge reads 5 - 10% high . I always wind up putting more in the tank than the mpg/mileage readout says I should. I can't speak to the fuel economy of the SO setup. A friend has a 2022 3500 Limited Longhorn SRW with the SO engine. He says he gets about the same. After seeing our truck, he wishes he'd gotten the HO setup. If you're planning to pull a heavy load, the HO option is a no brainer IMO.