Hey guys, been lurking here for a while and love listening to all the stories and information.

I buoght my truck about 6 weeks ago, its a 99 F250 CC 2WD lifted 4". My first pickup. I decided today that I had some time and would change the oil and filter just to give me an excuse to get under the truck. My hayes manual says to use 5-20 and I checked previous posts here that also said 5-20 so I went to the store and bought the expensive (did I mention that I love this truck) Mobil1 0-20 that says its for use in engines that require 5-20. Driving back I notice the sticker in the window from the last place it was taking for an oil change (before I owned it) says that 5-30 is used. Got home checked the owners manual and that says 5-30 as well.

So I guess that I will have to go back and change the oil out. Is this a older v10 vs newer v10 thing?

Anyone have any recommendations for what oil to use? I know that its kinda a personal thing but I am yet to form an opionion. Also, the store also gave me Fram filter, I was looking for a Mobil 04651 since thats whats on there now but they didn't have any.

Thanks

Gareth

 

If the manual says to run 5-30, id run 5-30. The new V10s (05) do require 5-20. It must be a model year difference.

 

Welcome to FTE, Gareth

The 5W30 was for that year model and I don't see any reason to change it. There's been alot of discussions on this before, but in your case, the synthetic might find many more places to leak from.

How many miles on it?

Do you have a WalMart or equal store nearby? They have a good price on the Motorcraft stuff - filters, oil (if they've not run out already) and such.

 

The later V-10's went to 5-20, and all previous V-10's were retroactively suggested to switch to 5W-20. It's not required, it's suggested. Better mileage, better cooling, better lubrication, etc, all the betters. Thicker isn't better nowadays. With tight tolerance engines the 5W-20 Motorcraft synthetic blend is the best mix of price and value. And never, never, never use orange filters, spend the extra .75 cents and buy Motorcraft, please, Ken

 

Cut that out Ken...

Everything everyone else said, plus:

My '01 V10 specifies an FL-820S Motorcraft filter - notice the S suffix - that means silicone anti-drainback valve. If you are going to use aftermarket filters, make sure they have that silicon anti-drainback valve, there's a reason for it (see: OHC).

Your 99 is probably higher miles, so the 5w30 isn't a bad choice. I run 5w30 in my '01 even though it says to use 5w20. Reason? I ran 5w30 (Castrol dino) in my '96 and '97 t-bird/cougar and the t-bird got the crap beat out of it. Never a problem for 60K miles, still running like new. Did I mention I beat the crap out of it? It's probably gulped enough air to run 200K+ for other people Now, the '01 says 5w20, even though the design has not changed, and the V10 is essentially the same as the 4.6L and 5.4L that were originally spec'd with 5w30.

It's your choice - your owner's manual says 5w30, that's fine. Mobil 1 is a personal choice, but I'd think you can use it and have no problems (except a .5-1 qt loss between oil changes).

art k.

ps: Ken, check out the new XG2 orange filter, silicone anti-drainback valve, metal internals, etc. Much better than the standard one, which is NOT spec'd for the V10 because of the drainback valve. So, you're right stay away from the cheap orange one - I'm sure you've heard this before, but I've run them for years (cheapos) on many vehicles for 300K+ miles total, my brother-in-law has sold 100K+ of them wholesale in the last 20 years and while he's had many warranty claims with pennzoil, motorcraft, etc, none with Fram. That's in the marine market, too...

 

I agree that the anti-drainback valves in oil filters are necessary to keep the oil in horizontally mounted filters from draining back into the pan, but with our vertical application how big is the roll that it plays?

I have heard of Chubbys "sucking" the oil out of the filter, but I'll believe it when I see it.

Enlighten this here redneck...

 

I agree with you Ron, pretty hard for the oil to drain out of that filter.

 

The trucks has 56k miles on it and is great shape. I got it from a guy who seems like he took care of it and took it in for an oil change every 3k. He used the truck for towing his race car around and the odd road trip so it wasn't a daily drive.

I take the train to work everyday so its just for fun for me as well.

I have a WallMart and a KMart pretty close by. I think I am hearing Motorcraft 5-30 and filter. Anyone have the part number on the filter?

Thanks again.

Gareth

 

Got a fishtank? Take a piece of hose, suck on it until it's full of water and put the other end in a bucket such that when the bucket fills, the water level will be equal to the level in the fishtank. The bucket will fill until the level in the fishtank and bucket are equal. Raise the bucket, it empties. Lower it, it fills. The oil filter is the bucket. The fishtank is the oil pan. Now, put a pump in there that pumps water up a tube about 6 feet high - make sure it's an impeller pump not a diaphram pump Turn on the pump, the bucket will start to empty, the siphon will pull water from the fishtank. Turn off the pump, the water in the tube will drain back into the bucket. The siphon will make sure the water in the bucket and the fishtank are level.

The fishtank is the oil pan, the bucket the oil filter, the tube an oil passage.

I know that in this example, the pump is in the wrong spot, in a motor the pump is between the fishtank and the bucket and the bucket is totally sealed. But you get the idea. The oil from the oil passages and filter will siphon back through the filter into the pan. If the filter happens to be vertical pointing down it will only empty a small portion until enough air gets into the media - there will be oil laying in the bottom of the filter shell that won't get siphoned out - BUT the oil passages and oil pickup will be full of air...

This all assumes there are no check-valves in the oiling system. I saw that once in some japanese OHC motor, but I don't think the V10 has anything like that... but I could be wrong

 

FL-820S Motorcraft filter

 

So Fords and Chubbys suck? Aw man!

Thanks for the explanation, art. I was not totally convinced that the oil would "get sucked"" out of the filter, but now I can see maybe so.

 

Exactly - maybe - it all depends on where the filter is compared to oil passages, if any run downhill, filter position, etc...

ak

 

parking in San Francisco for example ? Having 2 flat rear tires and changing a front tire when you have 44" ers with a big jack could be another example ? The list could be endless, hauling a GM diesel in your bed for a friend (yea, it WOULD have to be a darned good friend) could weigh down the rear end enough,

 

I couldn't find the motorcraft oil anywhere but I did get the motorcraft filter. I settled on Vavloline SAE 5-30. Any comments on this oil?

G

 

auto zone is the only place I have found the motorcraft oil