The problem with the compareable GM products is the cylinder deactivation and fuel management. They straight up murder lifters by 100k. If you turn it off you'll do yourself a flavor. So I wouldn't consider the new V8 GM products necessarily "Reliable" out of the box.
The 5.0 coyote Fords? Absolutely. Bullet proof right out of the box. Rams too.
GM has MDS as well??
I just turned mine on in me '08 RAM 1500 HEMI and it looks like it picked up 3 MPG around town but sounds like a 4 cylinder Ford tractor when the MDS kicks in.....Chug....Chug....Chug with my Magnaflow exhaust!!
Why do you say it will "murder lifters"....curious??
The rumor/findings is the cylinder deactivation is really hard on the lifters. I'm not familiar with exactly how it works, but I have a few GM tech friends that say they make their money off lifter swaps on 100k+ mileage GM trucks.
Truth be told though, lifter/cam issues in the LS's are a real concern no matter what. I've personally had a few junkyard 4.8/5.3's that have spun/burnt up cam bearings.
Ram incentives and discounts are greater, and in a lot of cases they're willing to move product cheaper at less margin to gain market share which theyve been gaining for the last few years at a good clip.
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