I have a 2004 F150 with 38,000 miles. I recently switched to YB at my last change. The modular ford engines were notorious for leaking down the oil during the long sit times, therefore they would experience a dry start-up. My Ford also suffers that problem. The cam chain tensioners leak down oil and the truck rattles at start-up for 1-2 seconds. Who knows what else is oil starved. Here is the foundation of my post. This is happening at shorter intervals now that I switched to YB. Before, it would take 10+ hours to leak down. Now it takes as little as 4 hours. Couincidence or chemical make-up of the oil? I previously used Motorcraft 5W20. I also use the recommended motorcraft filter. What do you think? Thanks, Matt
Switched to YB oil leaks down sooner.
- Thread starter mnm567
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Before I blame the YB 5W-20 I would try another filter, there is always the possibility of a defective filter. If that doesn't work switch back to the MC oil at your next change and see what happens.
JMO,
Frank D
JMO,
Frank D
Try using a thicker oil... Maybe a 10w40 or a 5w50 and see if gets any better... Had this same problem in my mini-van with a timing-chain... The thicker oil seemed to help.
Doesn't matter. Parts aren't as 'oil starved' as you think - there is still a robust film of oil on them that protects until engine is under full pressure.
If this was a serious problem, millions of Ford OHC engines would litter junkyards. They don't.
Don't worry!
If this was a serious problem, millions of Ford OHC engines would litter junkyards. They don't.
Don't worry!
I agree, nothing to worry about, but if the noise bugs you... Then try a thicker oil to see if it quiets down some.
I would not use anything thicker then a 30 weight. I would stick to 5w20.
These Modular motors like the thinner oil for the upper parts and timing chain(or so I have read)
Try other brands. Perhaps a little extra cash on a synthetic like Mobil 1 or Pennzoil Platnium.
There should always be a film of oil on all the parts, even after "leak down"
If you want to really spend some cash, try Redline. It has LOTS of moly and after some use, the moly will cling to all metal parts.
These Modular motors like the thinner oil for the upper parts and timing chain(or so I have read)
Try other brands. Perhaps a little extra cash on a synthetic like Mobil 1 or Pennzoil Platnium.
There should always be a film of oil on all the parts, even after "leak down"
If you want to really spend some cash, try Redline. It has LOTS of moly and after some use, the moly will cling to all metal parts.
What filter are you using? I would be using the Motorcraft that has the bypass in the proper location, and a silicon ADBV. IIRC your truck uses the Fl-820s. My 2¢ on the matter.
I currently use the motorcraft Fl-820S filter. I don't want to stray from the 5w20 because the variable cam timing operates on oil pressure and damage could result from a thicker oil. (I had the VCT phasers replaced when I bought the truck, Free of course).
I may try the PP and see what happens. I'm wondering why the motorcraft oil would cause slower leakdown? I don't know enough about the VOA's to compare each oil. One must have more of one element than the other. Thanks, as always!
I may try the PP and see what happens. I'm wondering why the motorcraft oil would cause slower leakdown? I don't know enough about the VOA's to compare each oil. One must have more of one element than the other. Thanks, as always!
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