Synthetic Oil

Reply Subscribe

Thread Tools

Search this Thread

Mar 23, 2008 | 05:03 PM

Jeff V10

Thread Starter

New User

Joined: Sep 2007

Posts: 7

Likes: 0

Synthetic Oil

I have a V10 and am thinking about changing over to synthetic oil. i only have 45000 miles on the truck, trying to find out if it will really get me any better gas mileage. Also am thinking about changing plugs. heard it is a pain in the gas. any help ther ewould be great as well.

Thanks in advance

Jeff

Mar 23, 2008 | 07:35 PM

azfordf100man

Elder User

Joined: Aug 2007

Posts: 503

Likes: 0

From: arizona

at 45,000 you should have no issues switching to synthetic. As far as the plugs, I can't help you there.

Mike

Mar 23, 2008 | 07:51 PM

PAPA Tony

New User

Joined: Sep 2007

Posts: 8

Likes: 0

From: Homer Glen, Illinois

I heard that if you use synthetic oil with a by-pass filter that you could go over 500,000 miles without changing oil. I really find that hard to believe. If that's the case why wouldn't every one do it ? Must be a down side but I can't imagine what it would be. Sure seems that you could save a lot of $$$$ that way

PAPA Tony

Mar 23, 2008 | 08:02 PM

dkf

Hotshot

Joined: Mar 2007

Posts: 10,101

Likes: 40

From: Pa

Quote:

Originally Posted by Jeff V10

I highly doubt you will notice any increase in mpg going from MC 5w-20 to a full synthetic 5w-20.

As for the plugs, they should be replaced. Replacing all ten plugs takes about 2 hours give or take. You can go down to the V10 forum and start a new thread or do a search down there. There is tons of info.

Mar 23, 2008 | 09:48 PM

dew the thunder

Elder User

Joined: Feb 2007

Posts: 805

Likes: 1

From: South Bend, IN

I made a recent switch to AMSOIL full synthetic about 9k miles ago. In the next couple of weekends I'll be replacing it with Mobil 1 full synthetic. Im pretty sure all Motorcraft oil is a semi synthetic blend now but converting to full synthetic will not net you anymore mileage... at least it didn't for me. It may however break a couple ponies loose.

Mar 23, 2008 | 10:29 PM

azfordf100man

Elder User

Joined: Aug 2007

Posts: 503

Likes: 0

From: arizona

Quote:

Originally Posted by PAPA Tony

Yeah, I would never do that! Even if the filtering did it's job the TBN (active additive) would never last that long.

Use whichever you would like, the MC oil is a great motor oil, but Mobil 1 is also a great oil. Use whatever makes you happy and comfortable.

Mike

Mar 23, 2008 | 11:19 PM

i eat hybrids

Post Fiend

Joined: Sep 2005

Posts: 5,955

Likes: 9

From: Ohio

I have synthetic. I never noticed a mileage increase. Heres one thing that i noticed though from switchin from Mobil one 5w20 syn to Royal purple 5w20 syn. When i had the mobil one in the truck i used 1.5 quarts every 3k. Now with the RP i use .5 quarts every 3k. So my oil useage has gone down.