Emissions devices installed on the 2.2

[blue7.3]

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Originally Posted by gnorthern

I keep reading about these Indian Scorpios with the 2.2 liter engine that weigh over 1000 pounds more then the TR's, have a 5 speed manual, and get 22 mpg city and 29 highway. Will all of this urea kill the fuel efficiency or can we expect 25 mpg city and 31 highway?

It's not the urea per se', it's the emissions control system in general. The quick answer is that M&M isn't saying, so we'll all keep working the beads until they do.
A somewhat longer answer is that the DEF systems have helped raise fuel mileage over the previous method of heavy EGR regulation in the big trucks, but overall it's probably lower by some amount then the pre-emissions days.

Overall I'd bet that it's not a lot lower because even though the older trucks (like mine) have no EGR or catalysts, their fuel delivery systems weren't nearly as precise as modern systems... they didn't need to be, and the ("old") cheap way to make power on a diesel is to throw more fuel at it (other systems being modded accordingly)
-pete

[Dennis Gauge]

You say Dodge is still using fuel-based DPF regens like it's a GOOD thing... The only reason they didn't go to urea/DEF injection is because the 6.7 Cummins passed the 2010 emissions requirements right from the get-go. It still gets the same cruddy fuel economy compared to the 5.9...

I would rather have to dump a $3 bottle of urea juice in my truck every few thousand miles than an extra $3 gallon of diesel at EVERY fill-up.

I'm glad Mahindra is going the DEF injection route, but I'm still worried that the promised 30MPG is going to end up closer to 22MPG with all the emissions and safety equipment the US government makes auto makers add to our vehicles.

[blue7.3]

Originally Posted by Dennis Gauge

I'm glad Mahindra is going the DEF injection route, but I'm still worried that the promised 30MPG is going to end up closer to 22MPG with all the emissions and safety equipment the US government makes auto makers add to our vehicles.

I'm inclined to agree w/ your concern Dennis!
I guess time will, err, should, err, well it might tell.
Sorta depends on if when we get to winter M&M just makes an announcement saying "never mind, we were just kidding"
-pete

[C Sean Watts]

Originally Posted by triple7driver

just pee in it.....it's the same thing !

Actually very far from it. Urea is NOT the same as URINE.

[C Sean Watts]

Originally Posted by gnorthern

I keep reading about these Indian Scorpios with the 2.2 liter engine that weigh over 1000 pounds more then the TR's, have a 5 speed manual, and get 22 mpg city and 29 highway. Will all of this urea kill the fuel efficiency or can we expect 25 mpg city and 31 highway?

Urea will not change the efficiency since it's injected into the exhaust downstream of the turbo but what WILL is the 3 or 4 oxidizers and catalytic converters that will add extra weight and reduce power.