Most miles on an ecoboost.
03-12-2014, 10:27 PM
#31
Senior Member
I found this on bitog: www.gf-6.com.
Here's a small part of what they are saying about a new oil spec:
New phenomena linked to GDI
Though gasoline direct injection boosts power and efficiency, especially in conjunction with turbocharging, it is not perfect. Not all the fuel vaporizes in the combustion chamber, and this can be emitted as PM in the exhaust. In fact, European legislation now entering into force places limits on the PM emissions of GDI vehicles, making it probable that some may have to be fitted with particulate filters similar to diesel cars.
This, says UK-based Lubrizol technical manager Keith Howard, means that the filters risk becoming blocked with PM ash, which would in turn point toward GDI vehicles requiring low-SAPs oils – just as diesels now do.
A second issue, says Howard, writing in the January 2013 edition of Lubes’n’Greases, is that the particulates entering the oil via blowby gases begin to increase the internal wear rates, with a number of OEMs reporting issues of cam-chain wear after switching from port injection to GDI. Other studies cited by Howard have revealed that oxidation within the oil can be much more aggressive in turbo GDI engines, leading to a rapid viscosity increase – which is of course the worst enemy of fuel efficiency. “The situation can be significantly improved by using oil formulations that include more oxidatively stable base stocks and more additive packages,” he observes.
Much the most mysterious, however, is the phenomenon of low-speed pre-ignition (LSPI] that affects TGDI engines. In severe cases, LSPI can damage pistons, degrade performance, lower fuel efficiency and increase emissions, says Howard. The phenomenon is not yet understood. Nevertheless, he says, several automakers “have expressed interest in minimizing LSPI and have included it as a performance parameter in their proposed ILSAC GF-6 gasoline engine oil standard.”
Notice the part about timing chain wear due to particulates entering the oil; since seeing this I have reduced my oil change intervals to 4000 miles from 5000. How big this issue is, I don't know as it is the first I've heard of it.
Here's a small part of what they are saying about a new oil spec:
New phenomena linked to GDI
Though gasoline direct injection boosts power and efficiency, especially in conjunction with turbocharging, it is not perfect. Not all the fuel vaporizes in the combustion chamber, and this can be emitted as PM in the exhaust. In fact, European legislation now entering into force places limits on the PM emissions of GDI vehicles, making it probable that some may have to be fitted with particulate filters similar to diesel cars.
This, says UK-based Lubrizol technical manager Keith Howard, means that the filters risk becoming blocked with PM ash, which would in turn point toward GDI vehicles requiring low-SAPs oils – just as diesels now do.
A second issue, says Howard, writing in the January 2013 edition of Lubes’n’Greases, is that the particulates entering the oil via blowby gases begin to increase the internal wear rates, with a number of OEMs reporting issues of cam-chain wear after switching from port injection to GDI. Other studies cited by Howard have revealed that oxidation within the oil can be much more aggressive in turbo GDI engines, leading to a rapid viscosity increase – which is of course the worst enemy of fuel efficiency. “The situation can be significantly improved by using oil formulations that include more oxidatively stable base stocks and more additive packages,” he observes.
Much the most mysterious, however, is the phenomenon of low-speed pre-ignition (LSPI] that affects TGDI engines. In severe cases, LSPI can damage pistons, degrade performance, lower fuel efficiency and increase emissions, says Howard. The phenomenon is not yet understood. Nevertheless, he says, several automakers “have expressed interest in minimizing LSPI and have included it as a performance parameter in their proposed ILSAC GF-6 gasoline engine oil standard.”
Notice the part about timing chain wear due to particulates entering the oil; since seeing this I have reduced my oil change intervals to 4000 miles from 5000. How big this issue is, I don't know as it is the first I've heard of it.
03-15-2014, 09:11 AM
#33
Senior Member
72k and 46k on 'em. See signature.
Only issue on the Taurus was a knock sensor chaffed its wires before 36k and they replaced it under warranty. It was an issue with the early builds of the car-based Ecoboost. No aftermarket parts, oil changed at the dealer when the it said to (or earlier or later).
On the F150 no idea what the previous owner had done but according to OASIS nothing. It looked to be serviced at the Ford dealer as well going by the maintenance records in the Carfax.
I'm hoping for at least 200k out of each.
Only issue on the Taurus was a knock sensor chaffed its wires before 36k and they replaced it under warranty. It was an issue with the early builds of the car-based Ecoboost. No aftermarket parts, oil changed at the dealer when the it said to (or earlier or later).
On the F150 no idea what the previous owner had done but according to OASIS nothing. It looked to be serviced at the Ford dealer as well going by the maintenance records in the Carfax.
I'm hoping for at least 200k out of each.
03-15-2014, 02:21 PM
#34
Who has the most miles on a 5.0? I did not see a thread here.
03-20-2014, 02:41 PM
#35
Not mine but a guy I work with has 125+ on his 2011. I've talked with him and he said he hadn't had any issues at all with it and it also sees a lot more idling time than a typical truck as well. He said his only disappointment with it was he had expected it's fuel economy to be better than he's experiencing (when extended idling isn't going on of course) otherwise he's happy.
2200 trouble free miles for me!! LOL, Owning two 5.4 Platinum's and moving on to the Ecoboost, I absolutely love it!!!This may be the first vehicle I actually keep for 120K miles
Last edited by White Platinum; 03-20-2014 at 02:43 PM.
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SURF150 (06-06-2016)
06-16-2016, 07:36 AM
#38
Senior Member
25K with 40% of that towing.
I have a 2014 XLT 4x4 Scab, 8ft box, MaxTow and HDP.
I have a 2014 XLT 4x4 Scab, 8ft box, MaxTow and HDP.
07-16-2016, 11:19 AM
#39
A friend of mine had 167,000 on his 2011 that was a work truck that was mostly on-road. He traded it for a 2015 and how it over 67,000.
Only issue was on the new one that has the condensation issue.
Only issue was on the new one that has the condensation issue.
