Correct Oil for V10

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Aug 25, 2003 | 08:58 PM

#16

krewat

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From: Long Island USA

Correct Oil for V10

Quote:

Originally posted by brcowan
Any comments about Castrol oil?

Yeah, one...

In my 20 years of working on internal combustion engines, I've used Castrol for everything I could. Never had an oil-related problem. It always stayed "non-black" far longer than any other dino oil I've seen...

Good sh&%

Aug 25, 2003 | 10:06 PM

#17

brcowan

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Joined: Aug 2003

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From: North Florida

Correct Oil for V10

Thanks for the input krewat. I've been using Castrol for years in my other vehicles with no problems. I just wanted to make sure that there were no problems running it in the V10 (my first Ford). Any comments about their synthetics / blends or "4X4" oils? The oil for 4X4's is 15W-40 (too thick???)

Aug 26, 2003 | 10:10 AM

#18

Big Orn

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From: NE Texas

Correct Oil for V10

Quote:

Originally posted by brcowan
Any comments about their synthetics / blends or "4X4" oils? The oil for 4X4's is 15W-40 (too thick???)

My personal opinion: I would not run thicker oil for any reason - unless the engine is excessively worn. Blends for 4x4's are made for extreme off-roading and do work for the applications for which they are formulated. I pull anywhere from 8000 to 13000 lbs depending on the job. I do this on weekends mostly so no heavy hauling all the time. I see no oil breakdown in my engine oil whatsoever and it is always clean until its time to change it. I have tried the heavy oils (dino and synthetic). I have noticed that with Mobil 1 the engine will use a quart in 2000 miles. Also with the 10W30 dino my engine will use a quart in -+ 2000 miles. With the Castrol 5W30 it never uses oil - none.

Aug 26, 2003 | 10:44 AM

#19

krewat

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From: Long Island USA

Correct Oil for V10

Quote:

Originally posted by brcowan
Thanks for the input krewat. I've been using Castrol for years in my other vehicles with no problems. I just wanted to make sure that there were no problems running it in the V10 (my first Ford). Any comments about their synthetics / blends or "4X4" oils? The oil for 4X4's is 15W-40 (too thick???)

15w-40 is WAY too thick. I use 5w30 Castrol in my V10, and on the first oil change (500 miles), I noticed it was MUCH quieter than with the Ford 5w20. Sounded like timing chain noise.

I have no info on synthetics, the only thing I've ever used is Castrol Syntec in my '96 T-bird 4.6L once and never again. It started weeping out the valve cover and other gaskets...

I've noticed a lot of people complain of oil usage. With Castrol 5w30, I have had NO oil usage even when really beating it. See Big Orn's posting above mine.

ak

Aug 26, 2003 | 01:53 PM

#20

ken04

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Joined: Mar 2002

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From: Vancouver Wash USA

Correct Oil for V10

Quote:

Originally posted by krewat
15w-40 is WAY too thick. I use 5w30 Castrol in my V10, and on the first oil change (500 miles), I noticed it was MUCH quieter than with the Ford 5w20. Sounded like timing chain noise.

I have no info on synthetics, the only thing I've ever used is Castrol Syntec in my '96 T-bird 4.6L once and never again. It started weeping out the valve cover and other gaskets...

I've noticed a lot of people complain of oil usage. With Castrol 5w30, I have had NO oil usage even when really beating it. See Big Orn's posting above mine.

ak

If I remember correctly 5W-30 was Ford's original recommendation, which changed in 99 or 2000 to 5W-20. I have been using Mobil 1 Super Syn 5W-20 ever since I saw that it was Ford's preferred viscosity from another poster here. I have never had a weeping problem, nor have I had a usage problem with the synthetics, although I do have what other people suggest is piston slap, although I would never admit to it since it sure doesn't sound like piston slap. But I have noticed no increase, or decrease for that matter in noise or temperature going from 5W-30 to the thinner, yet supposedly better cooling 5W-20. But I see you have noticed a difference in timing chain noise, now I will have to check, because now you've made me think about it, and HATE it when that happens (when I have to think about something, not that I'm ****-retentive or anything, much).

Aug 26, 2003 | 04:45 PM

#21

Big Orn

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From: NE Texas

Correct Oil for V10

I really hoped to be able to run M1 in my truck, but after it began to use the oil I stopped using it. It made the cold-start clatter disappear, it seemed to idle smoother and was cleaner than the Castrol at 3000 miles (not that Castrol was black or dirty, it was just not as clean). M1 is a great oil and I would recommend it. I have used it for years on my other trucks and even in my Honda generator.

Aug 26, 2003 | 08:20 PM

#22

mooseknuckle

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Joined: Aug 2003

Posts: 11

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Correct Oil for V10

So many different opinions on oil usage here, I cant get away from adding mine. I believe that the lower vis oil reccommended from factory is to lesson the effects from friction during start up, but may not protect after warm up and during extreme operating cond. Synthetic oils are basically designed to prolong oil life but does nothing for contamination. I just took delivery on my first Ford 2004 F-250 FX4 V-10 and Think I will run Mobil 5-30 with K-N oil filter. I will let you guys know if there are any issues with leaking,piston slap,smoking,or noise. I live in Tampa Fl where low temps are not a problem. Feedback is appriciated! (Former die hard Cheverlot owner) Yeah iam jumping fences these days!

Aug 26, 2003 | 08:51 PM

#23

daimon1054

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From: Broussard USA

Correct Oil for V10

Just change it! Really does not matter what you run if you keep it clean!
It kills me how many oil threads every site gets. When I was young we had oil! No special oil for this or that and you know I never in my life had and oil related failure. Now they make oil if you truck has 1 mile a different if it has 20 miles and yet another if it has big rear tires and never has any oil company explained what the difference is.

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Aug 26, 2003 | 09:23 PM

#24

brcowan

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Joined: Aug 2003

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From: North Florida

Correct Oil for V10

daimon1054, you sound just like my dad. He has always told me just to keep clean oil in a vehicle and it would be fine. You guys probably went to school together; you know, the one that you had to walk to, uphill, in the snow, both ways.

Seriously thought, I appreciate the input. This is my first Ford, and my first truck without a carb on it. I just don't want to mess anything up. Never had EFI either, but I'll start a new thread for that topic.

Aug 27, 2003 | 04:45 PM

#25

Rockwell

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Joined: Jun 2001

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Correct Oil for V10

My 1994 5.0 has about 130,000 miles on it using 10w30 dino - no problems

My 01 5.4 had 30,000 on it using 5W30 dino - no problems.

My 03 V10 has 15,000 miles on it and only ever gets M1 5W30 - no problems.

Go Figure

Aug 27, 2003 | 06:11 PM

#26

get lit

Freshman User

Joined: Jul 2003

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Correct Oil for V10

well i`v heard that ford recomends the 5-20 not only for cooling but also some of the oil journals are much smaller than older motors.

Aug 28, 2003 | 10:10 AM

#27

krewat

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From: Long Island USA

Correct Oil for V10

The only "official" information I have seen from Ford is that it increases mileage and decreases emissions. THAT'S ALL.

Journal clearances didn't change for the 4.6L and 5.8L motors when Ford when from 5w30 to 5w20.

The real reason, I think, is that they needed to meet CAFE (Corporate Average Fuel Economy) ratings and needed an extra .1MPG or so to not get FINED.

ak

Sep 3, 2003 | 09:33 PM

#28

Twinbulls

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Joined: Dec 2001

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From: Ft.Lauderdale USA

Correct Oil for V10

I have run 5W30 for the past 111,000k miles with no problems.
But I do nitice that I am loseing a little over 1 qt. between oil changes(3k).I have NO leaks and I have not seen any smoke??

twinbulls

Sep 7, 2003 | 05:22 AM

#29

fsnco1

Senior User

Joined: Oct 2002

Posts: 221

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From: SLC

Correct Oil for V10

same as twinbulls here...... 95,000 miles and run 5w30. I loose about a quart between changes but other than that no problems. I had a 30 second knocking sound when starting up in the winter but 5w30 seemed to fix it...... maybe becuase its summer now?