Many understand ticking differently.
I have several 2.4s and have had zero problems and not even the oil use problem where they have the recall for a flash that makes less vacuum on deceleration.
Has it been your experience that the fuel economy of the 2.4L is near “World’s Best” ?
Fiat made a big deal of MultiAir when it first came out.
Then the MultiAir - II system was bragged on by Chrysler and Fiat:
https://www.wardsauto.com/technology/chrysler-s-new-multiair-ii-engine-put-testsample quote
There are four valves per cylinder, and the electro-hydraulic MultiAir system, pioneered by Fiat for infinite variability in controlling the intake valves, has been optimized for fuel economy and performance, MacFarlane says.
The intake valve event now allows more internal exhaust gas recirculation, he says,
“so we have a longer duration in that inlet on the opening side;
you get more internal EGR for fuel economy.”
MultiAir II “simultaneously controls the opening and the closing point for the valve event,” MacFarlane says.
“With MultiAir I, you had to pick the opening or the closing – you couldn’t pick both.
So this allows what we call hybrid mode,
where you control both the opening and the closing of the inlet for a very short duration,
and you can put that inlet anywhere in the cycle.”
end quote
Is it a really thrifty engine
compared to prior 2.2L to 2.5L engines?
