I would like to know where you guys get this info from.
The 5.4, 4.6 and 6.8 are used all over the world, it is only in the U.S. that they are recomended to use 5 w 20 and that is only bnecause Ford get's a break on CAFE standards.
Modular engines from Ford, including the 2.4, 2.5, 3.0, 3.5, 3.7, 3.8, 4.0, 4.6, 5.4, 6.0, 6.2, 6.8 all run 5 w 40 in every other part of the world accept North America. 5 w 40 will in no way clog up your oil passages. Please dont try to scare people from using great products because you hear from a friend that his brother in laws friends sister who's cousin had a buddy that had a problem using the so called oil screwed up his engine.

 

I am picking up the truck tommorow it is a 2009 so it was probably built a while ago, but I will find out. Ford will say to me bring it back for the first oil change and if it has been along time since it was built I should have them do the oil change then ? Probably will have 200Km on it as well, or just drive it for a week or two first ?

 

Popatop : I just picked up my new F 350 v 10 last saturday now have 1100 miles on it with factory oil and it's still running! run it to where you feel comfortable and than change it . You paid for the oil so use it.

 

good point, with all of this info I am on overload

 

Please let me know if, or ware you trade you vehicles in at cuz. I dont want to buy one after you had it...

 

I agree... I changed mine as soon as I got it home with castrol gtx, and every 500 miles after, till 1500 miles then switched to Mobil 1.

I ussually get well over 300,000 miles on my vehicles
example.

My 1987 crown vic LX donated it with 365000 miles on it, in 2003. The odometer broke in 2000 or so. It had to be over 400,000. and it tought 3 kids how to drive (abuse) towed campers and boats on family vacations.
( that was before paycuts, and $2.50 gas. LOL

 

If you read my post I never used the word clog. "Not flow well" and "clog" are not the same meaning last time I looked in a dictionary. Your engine do what you want.

 

I used the term clogged and I suppose it wasn't the right wording to use. The 4.6l, 5.4l and 6.8l are modular motors.(4.2l might be a mod too) The SDs are exempt from CAFE because of GVW. 5w-20 is speced for the 5.4l and 6.8l in Mexico and they don't have CAFE. Canada obviously specs 5w-20 also.

 

CAFE standards........ what a joke, but that's another topic in it's self right there!!

 

Thick oil. https://www.ford-trucks.com/forums/7...tting-oil.html

 

good reading!!

 

You did notice that I said North America. That beeing said again ,as I sit here in the office at Ford Motor co. Cleveland Casting plant and am looking over dyno reports for our v-10 blocks that have gone through machining and build up, the oil being 5 w 40 and all reports look fantastic. Yes it is true that 250s and up do not require CAFE but what you don't understand is that all the vehicles Ford sells have to meet a Cafe number of which 250 and up are a part of that mix. But run what you want. P.S. my daughters 99 Contour with 247,000 mi. on it is still running fine on the original motor running you guessed it Rotella 5 w 40 . The 06 E 150 van I just traded in on my new F350 with 87,000 mi. on it was running like a top on Rotella

 

I read the post you directed me to and find nothing about heavy oil. The one guy said he runs 5 w 20.
P.S. I told you this would open a can of worms.

 

Do you guys cast the heads there also? Did you guys cast the blocks for the modulars have been made at the windsor plant? I know Ford has done some juggling lately.

I'm shure 5w-40 will flow fine thru a new engine at room temp. Let the motor sit in subzero weather overnight and start it in the morning with 5w-40. See how its does after 150k+ miles on the thick stuff and the motor builds up some deposits. The head passages are also very important also as the cams ride right on the aluminum.

 

Post 16. OP runs 10w40.