V10 Engine Oil Question
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Junior User
Joined: Nov 2007
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From: The real NY UPSTATE
V10 Engine Oil Question
I have 2005 V10 that has 78K miles on it. I have always and only used Motorcraft 5W20 semi synthetic oil and FL820s filters. I just changed my oil and didn't realize until 6qts were in that I purchased Motocraft 5W30 semi synthetic. The owners manual doesn't recommend anything other than 5W20. Will I have any problems?
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Joined: Jun 2008
Posts: 2,564
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From: Wayyy NoCal, USA
If you were south of latitude 40, I would say no issues or risks whatsoever.
But you profile says upstate NY. Brrr. Qualifier time....
If you park your truck outside with no block heater, you may want to try to avoid or at least minimize start ups on sub 0 degree days. Other than that, good to go!
Things in your favor:
Ford orignally spec'd 5W30 for V10's, and it does not appear there were any design/bearing clearance changes when the spec changed.
Your engine s/b broken in by now and not super tight.
Semi-synth will flow somewhat better than non-synth at low temps.
But you profile says upstate NY. Brrr. Qualifier time....
If you park your truck outside with no block heater, you may want to try to avoid or at least minimize start ups on sub 0 degree days. Other than that, good to go!
Things in your favor:
Ford orignally spec'd 5W30 for V10's, and it does not appear there were any design/bearing clearance changes when the spec changed.
Your engine s/b broken in by now and not super tight.
Semi-synth will flow somewhat better than non-synth at low temps.
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Junior User
Joined: Nov 2007
Posts: 52
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From: The real NY UPSTATE
Thanks for the reply; sort of what I thought about the 5W30 BTW. I am in Florida and headed for the Texas coast for the rest of the winter! I lived in upstate NY (Rochester) for 60 yrs and I don't need that winter scene anymore!!
Postmaster
Joined: Jun 2008
Posts: 2,564
Likes: 11
From: Wayyy NoCal, USA
Oh, you'll be dandy then!
Some even prefer to run 5W30 or 10W30 during hot summers.
I will likely switch to full synthetic 10W30 after the new engine has 50K miles as it almost never gets below freezing where I am.
Some even prefer to run 5W30 or 10W30 during hot summers.
I will likely switch to full synthetic 10W30 after the new engine has 50K miles as it almost never gets below freezing where I am.
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