what's the benefit, peace of mind in my opinion.I'm sure this has been beat to death, so I apologize.
Other than sound with new exhaust (which doesn't concern me much).
What's the benefit of turning the MDS off? How's it changes MPG? etc. etc.
You can temporarily disable it by setting the manual gear selector to 8, or using tow haul mode.How do you turn the MDS off?
There's a lot of opinions on this and not much actual data to back those up. Some claim to save fuel when leaving it enabled, while others claim it makes no difference. I would ignore any YT videos out there with oiling issue claims, as there is again no actual data to support those claims. Just opinions. If it doesn't bother you to leave it on, then by all means leave it on. If you don't like the idea of your v8 engine running on 4 cylinders then by all means disable it. In my experience it doesn't benefit or hurt the engine either way. I've always disabled MDS on my trucks, but the wife lets it do its thing on hers. Neither of us has experienced engine issues. It would be interesting to see actual data either way, but at this point I don't see that happening now that the Hemi is history.I'm sure this has been beat to death, so I apologize.
Other than sound with new exhaust (which doesn't concern me much).
What's the benefit of turning the MDS off? How's it changes MPG? etc. etc.
Are you referring to the 2.7L? They won't act exactly the same, as cylinder deactivation is completely different than a turbo spooling. Also this engine has less HP, and the two engines would have different hp/tq curves.Question for those better educated in drivetrain technology than me.
Gm has the 4 cyl single turbo, Ford the V8 5.0 with mds (like newer hemi) and also ecoboost. Now when my mds equipped hemi is loafing along on a flat or downhill, its in eco mode. As soon as I put even the slightest pressure on the go pedal, or theres a slight grade, its back into v8.
So would it stand to reason that the GM 4 cylinder will act the same and have to boost in order to provide the requested power in the same driving? That would seem to indicate a lot of turbo usage.
The hemi on 4 cyl must be about the same size and power as the GM 4 cyl, yet the hemi rarely can stay in eco mode.
My neighbor bought the 2.7 4 cyl and 1- it sounds like a sewing machine as he drives off and 2 - he said he's almost always into the boost, so I was wondering.Are you referring to the 2.7L? They won't act exactly the same, as cylinder deactivation is completely different than a turbo spooling. Also this engine has less HP, and the two engines would have different hp/tq curves.
I get what you're saying tho, would the delay be similar. I really can't say. But it's apples to oranges
what's the benefit, peace of mind in my opinion.
They probably tuned it to be boosted all the time because it’s such a small engine for a big truck if I had to guess.My neighbor bought the 2.7 4 cyl and 1- it sounds like a sewing machine as he drives off and 2 - he said he's almost always into the boost, so I was wondering.
Seems like the 5.3 V8 for $1600 or so would have been a better choice but that's what they had (2.7 four) on the lot.