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That would be high for me. I’m averaging 14.2 currently 99% mountain driving since the new valve covers were installed, it went up from 13.5 over the same conditions.So far after about 1,000 mile and 11,750 miles it seems to have quit consuming oil, although I still have another 2,000 miles to complete the oil consumption test.
My mpg is still on the low side I guess at approximately 14.7 mpg.
That would be high for me. I’m averaging 14.2 currently 99% mountain driving since the new valve covers were installed, it went up from 13.5 over the same conditions.
Update on my oil consumption issue: So my truck spent 10 days at the dealership, where they performed the procedure recommended by TSB 19-2232 (replaced the valve covers) at 4100 miles. I picked up the truck and everything seemed fine. Now at 5900 miles, again I started noticing reduced power on acceleration. Checked the oil, found it almost empty! Going back to the dealership for round II.
Spoke to Ford Corporate, they were very nice and said if this persists to file a claim for a manufacturer buyback.
I am 2 more dealership visits away from a lemon!! Wish me luck either way.
Thanks for the insight. I honesty don’t know what it is anymore. I took it to another dealer to get a new pair of eyes on it. We’ll see what they say, but I am optimistic that its a fixable issue.Check with the dealer to verify that they installed the updated part number for the valve covers. The updated part numbers are HL3Z-6582-E and HL3Z-6582-C. Also verify that the dealer ordered the valve covers directly from a Ford parts depot and not from parts department stock or another dealership. There were reports that some of the early replacement valve covers (early this past summer) had the same issue and needed to be replaced again.
Do you drive the truck hard? Its amazing that it was able to consume multiple quarts of oil in less than 2000 miles with no other symptoms such as blue smoke or fouled spark plugs, which leads me to believe it's a PCV related issue.