chimmike

change your oil after the 'recommended' interval and tell me how strong the fuel smell is.

After 4500 miles and my oil change, that's about as much dilution as I want to deal with. Fuel smell was strong. Fuel in the oil is no good. The longer you run with it like that, the worse it can be.

WXman

These are the same engineers that gave the masses a generation 1 EcoBoost engine that had gold fish in the intercoolers, supplemental vacuum pumps that died and hindered braking ability, cam phasers that crapped the bed before 100K miles, intake valves that had more carbon on them than a charcoal grill, and a transmission that would sometimes shift from 6th to 1st on the interstate. I'm not 100% sure they can be trusted like the Bible.

Keep in mind that a drivetrain engineer has one main goal: get the vehicle through the warranty period.

If I buy another F-150 I may look at the EcoBoost again because the generation 2 engine is supposed to have most of the issues resolved, but I would certainly change the oil frequently and the catch can idea isn't necessarily a bad one on a forced induction engine.

chimmike

The carbon buildup on the intake valves is a direct injection motor thing, and I know Ford knew about it before the 3.5 ecoboost went on sale, because DI engines all over the industry had to deal with this issue. BMW's early DI cars cost many thousands of dollars just to have the intake valves 'cleaned', usually at less than 100k miles. The Porsches weren't any cheaper, either.

No fuel washing over the vales+EGR systems=carbon.

etekberg

Just curious, how do you know they are the same people? Were you one of them?

WXman

I don't know. I'm making the assumption that in the period of a few years Ford wouldn't scrap all of their F-150 drivetrain engineering team and hire a completely new crew. That would be rather odd.

Alberta Bound

Are we confusing miles and km's ?
5000miles = 8046.72km's
5000km's = 3106.856miles

Just a Canadian asking ...

WestOGuy

Not sure - he may have used 'k' to represent 1,000, so 10k == 10,000 miles...

Angus1

I have the 5.0 so no experience with the eco. I did come from a dodge diesel back into the f150. The dodge manual listed cool down periods before shutting the engine off to prevent galling of the turbo bearings. Is this not a factor on the eco?

chimmike

Nope, these are water cooled turbos and modern oil doesn't really do this

Angus1

Okay, didn't know they were water cooled. Not sure about the modern oil part. My truck was a 2015 and the instructions covered ecodiesels and cummins. Below is straight from the ram diesel manual supplement for 1500, 2500 and 3500's

Stopping The Engine
Idle the engine a few minutes before routine shutdown. After full load operation, idle the engine three to five minutes before shutting it down. This idle period will allow the lubricating oil and coolant to carry excess heat away from the combustion chamber, bearings, internal components, and turbocharger. This is especially important for turbocharged, charge air-cooled engines.