These engines wear extremely well and don't need anything expensive to offer a long life cycle. Generally 10k mile OCIs are easily doable from the data I've seen. These engines suffer from a design concern in that the water pump is internal (inside cam chain cover) and if the outer shaft seal leaks, it will put coolant into the lube via seeping
This Duratec 3.5/3.7 engine series is not at all picky about brand/grade of lube; they pretty much wear easily regardless what's in the crankcase (within reason, of course). If not for the internal water pump, these would be 400k-mile+ engines easily. As for wear, this engine is right in line with expectations for the exposure.
Well, the OP light goes out even before the engine fully fires - it's insane how quick it goes out. Even with the vehicle idling for 30 mins or more after running for a while, I've never even gotten a flicker out of the oil light, and the level is good. I'm positive OP isn't the problem, so I'm not going to stick 20W-50 in it.
It has its quirks, but with good guidance with a mechanic, you can manage them. The information out there says to expect 300,000 miles out of her. Ford's 3.5 Duratec is one of their more
Problems and issues to look out for on the Duratec 3.5. The Duratec 35 engines, if regularly serviced and maintained, are generally very reliable and have few issues. Regular oil changes are vital on the Duratec 35, particularly when the engine has been modified and is putting down more power than the manufacturer intended.
The 2.7 EcoBoost has aluminum cylinder heads with integrated, water-cooled exhaust manifolds, dual overhead chain-driven camshafts, four valves per cylinder, and roller finger followers. The engine features variable intake and exhaust camshaft timing. A considerable amount of power and torque is achieved with the help of a pair of turbochargers.
The 3.5 seems to be the engine of choice for all the expeditors that I've heard from. I'm around 140,000 with no problems. The other expeditors have similar mileages (+/- 10,000 miles) and experiences. The jury is definitely out on today's diesel being economical to maintain long term.
3.5 L Ti-VCT Reliability. First of all, with the timing camshaft applied, it enables the engine to have natural aspirations. It works better along with the cooling system of 14.25 liters or 3.76 gallons. Second, the firing system used is coil on plug (COP) with the fuel system of sequential multi-port fuel injection.
Ford's Lima (Ohio) Engine Plant is producing 325,000 of the 3.5-liter 265 horsepower engines that are being introduced in the Ford Edge, Lincoln MKX and MKZ, Ford Five Hundred and the Mazda CX-9
The engine is heavily based on the EcoBoost 2.7L Nano, with cylinder bore increased from 83 mm to 85.3 mm. The engine’s piston stroke was also lengthened by 3.0 mm (for a total of 86 mm). Ford also replaced the Nano’s compacted-graphite iron block design for a cast aluminum construction. This engine first saw life in the 2017 Lincoln
Wrong engine. The Duratec 2.5/3.0L is a completely different animal. Those engines had the water pump located externally on the opposite side of the engine (flywheel side), driven by a tiny belt which ran off the front cam.
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is the 3.5 duratec a good engine
