Originally Posted By: Cujet
Turbomachinery, when properly designed, will outlast conventional engines. I can't speak to the quality of the turbo's on the Ford Ecoboost, but I can say that I'm not afraid of them.
Our 2011 Ecoboost is motoring along just fine on it'd diet of synthetic oil and regular gas. I get 19MPG. That's fantastic, considering I have a nearly identical truck with the V8 that is A) slower, B) gets 13.5 to 14MPG.
I agree with what you say, in principle.
From what I understand, Ford's turbochargers are manufactured by Borg Warner. The turbocharger in my MazdaSpeed3 was also manufactured by Borg Warner. Remember, up until 2009 Ford owned Mazda, and there was a LOT of shared engineering and technology between them, which is still VERY evident in both manufacturer's vehicles today. Having had a bad experience with a Mazda turbo, and knowing that the two companies were umbilically connected for a number of years, I don't get a particularly warm and fuzzy feeling about Ford's ECOBoost vehicles, the development of which occurred during the Ford/Mazda marriage. I have a feeling that there is a LOT of Mazda engineering in the ECOBoost engines. At the time they were designed, Mazda was building/selling several different turbocharged vehicles and had been continuously building at least one turbocharged model since 1986. Ford was not building any, and had not built any since the ill-fated turbocharged cars they built in the 1980s.
If you are only getting 14 mpg from a F150 5.0L V/8, something is wrong. I have several friends that have 5.0L F150s and they are all getting in the 18 to 20 mpg range, about the same as the other people I know that have the ECOBoost engines.