I think that full syn may make a difference in cold weather I know I ran it in my last V10 work truck year around but I could still hear some different noises when it was really cold, sometimes the fan made so much noise it was hard to hear anything else.

Denny

 

I bought my 2012 brand new and have had two very minor issues...... A few squeaks one was a bad tail shaft seal and the other was a bad body bushing.

I change the oil every 5k, I use a Wix filter with 6 quarts of Valvoline full syn and 1 quart of Lucas oil treatment. I have just over 15k on the truck now and the engine is very quiet.

I don't know if the Lucas has anything to do with it but I swear by that stuff. I used it in my wife's old car. 1999 GTP it had 250k on it I had the oil pan off and intake manifold doing gasket changes and the engine looked great inside. I have since sold that car and bough her a new mustang but that damn thing still ran strong and was very quiet and didn't use any oil.

I also used it in my old truck 2006 Serra Denali it had 120k and very quiet. I also have two hotrods.... I use Valvoline full syn in everything I own. My my two cars get beat on pretty hard.

So my oil use and brand stays consistent from my experience and when I do engine tear downs the proof is before me so no guess work.

Just my experience hope it helps.....

 

Ford must have a noisy fan fetish. I had a 91 that sounded like it was powering a wind tunnel.

 

Yes I think they do, when they come on with heat they do a very good job bringing the temp down but you know it's engaged and when it's done.

Denny

 

the fan is noisy and I can live with it for what it does, I hate the clacking noise out of the engine.. if I can reduce it down but using a better grade oil then I am ok with that..i don't expect it to be ultra quiet but when you got a gas engine that sounds like a diesel there is something wrong with that..

 

wow I have a 2015 f350 6.2 cclb that is the quietest truck I've owned. only problem with 2000k on it was a defective clock spring that caused a tiny steering wheel noise that the dealer fixed! mine is very quiet!

 

2012 SD 6.2L owner. I have 17500 miles now and just added some Militec at oil change.
I found out about this engine conditioner when working with new day military in 2001. Called Militec and the web site is www.militec-1.com , I have used this conditioner in every vehicle I have owned and in everything except Brake fluid. Also lawn mowers, weed wackers, chain saws etc... NO dry start-up. It is a monicular bond with the metal. Does not leave the engine when you change oil. I have used one 8oz bottle twice in my truck since new. Once at 3,000 and at 17000. This along with MC 5w20 FL820-s filter. Truck roars at startup and little fan noise when cold, engine in quiet. Military uses this in their vehicles and weapons. The hotter is gets the better it works. Very pricey and can only be bought on Internet from their website(unless you have a active military friend/family). Discounts do apply to former military and retirees. They also have Militec grease etc.... I was glad I checked it out in 2001. Research this, might be worth at least looking at the web site. Met a man from Germany at that time also and he told me about their version of militec called LA8. He said it was the virgin form of synthetic, used in vehicles and presses, machinery etc.., couldn't get any of theirs. All good. Just saying........