crazydubc

7500 on the Pennzoil Platinum 5W30.

Velosprout

I've not used anything but Motorcraft oil and filters since my first new Ford in 1974 and don't plan to change.

morehousej

if his truck is anything like my 2011 xlt 5.0L, it recommends 5W20 in the owners manual.

Vassago

Ive been told the Factory specs 5-20 instead of 5-30 to help with mpg.
Wether or not that's true or not, I'm not sure.
All I know is my motor sounds better( less noisy) with 5-30 and based on the report above its reducing wear better..... That sounds odd

Tothemax

? Been told? How about read a manual??????? They are available online. Takes about 30 seconds to find one..

According to the 2012 manual:

5w20 for the 3.7L V6, 5.0L V8, and 6.2L V8 engines

5w30 for the 3.5L Ecoboost.

Mystery solved...

Vassago

Lol, a little animated about the topic Tothemax?

I was referring to why the manual and factory specs 5-20 for v8's rather the 5-30.
Look before you leap.....

fourload

Mobil 1 0-30AFE all winter. Lots of 15-20 below zero nights this year. Cranks great. I also use the stuff in the summer too. 5k oil changes.

iFord

I use full synthetic even in my lawn mower engines. My 35 year old Ariens 11 hp Briggs and Stratton engine still going strong. But I NEVER go over on the higher viscosity number recommended in manual. If it calls for 5w-20, I'll go to 0w-20, but never to 30w on the high number.

Whew Combat (I'm one too, 'Nam), that old boy you linked to wrote a dagnabbed novel on oil! I'm there scrolling down just trying to find the list of best oils, forget all that testing mess that I don't understand anyway... Ok, back to his loooooong blog.

cecoboost

I've been reading about oil testing and the data is all over the place. Some sources claim some test are only valid for high pressure lubes like gear oil and grease which is why some of the reputable oils finish low. They claim engines don't produce the same high pressure frictions and these test don't apply to engine oils but very much apply to gear oil and grease. I have no idea but I did find an interesting article that shows an oil that finished very poorly in the blog posted earlier that seems to have better real world results. I do realize that the exact weight used in this article wasn't tested in the other but the results are interesting none the less. I'm not an engineer so I really don't know what to make of it. The test in the blog seemed to also apply to real world application as he demonstrated with the race engines mentioned in the write up. Does anyone have any thoughts on this? This is seriously confusing and it's difficult to discern which test are marketing schemes and which are real. One article says royal purple is fair and another shows a scaring test on a bearing that makes it look like the best oil on the planet. This oil testing stuff is crazy. Anyway here it is the Brad Penn oil used in this article finished near the bottom in the blog


http://store.forcedperformance.net/m...otor%20Oil.pdf

Combat vet

Glad you're enjoying the looooong read. I was in Nam '67-68 during the TET offensive. Welcome home!