Ok so I usually get my oil change done by my mechanic but have been wanting to do my own so now I am. I need to know what the best oil is to use, I am not going to use the recommended stuff and I was thinking royal purple. What do you guys think I have an 2008 4.6 with about 117000 miles

 

Why are you not going to use the recommended stuff that the manufacture of the vehicle suggest you use?

Motorcraft Syn Blend and Motorcraft Filters are the ONLY thing my truck will ever see.

Wayne

 

What engine do you have? In the 5.4 3v I highly recommend a full synthetic 5w30. Stay away from 20w unless you want it to sound like a diesel...

 

I use Mobil 1 Full Synthetic 5W-something. lol. Forget whether I put in 20 or 30. I use a Motorcraft filter these days though because they're just so cheap and readily available at Wally World. Spin my *** around in the aisle and there's my erl.

EDIT: It's 5W-30 Mobil 1 Full Synthetic.

 

Since you have a 4.6L I will ask you about something I posted on another thread: Just after an oil change my 4.6 uses about a quart of oil, about 500 miles, but after that it is good until the next oil change. Have you had that happen to you?
I use the Motorcraft 5W20 syn blend by the way and change the oil at 3K.

 

I know this is an obvious question, but how much do you put in during an oil change?

 

6 quarts, that is what the manual says and is what I am charged. As soon as I get it changed I check the level and it reads good, just seems to "use" a little shortly after and I wanted to see if anyone else noticed this phenomenon. On the bright side I drove the heck out of it this weekend, over 500 miles, and it did not use any appreciable amount.

 

I've used Royal Purple full synthetic 5w-30 in my 5.4 for almost 100k, no problems according to Blackstone. Run around 7500mi before I change it also

 

I use mobil 1 5w20 full synthetic and motorcraft oil filter FL820S on my 05 4.6 with 193,000 km or 120,000 mi change the oil about every 8000 km or 5000 mi.

 

Mobil 1 5w30 with MC filter changed every 6,000 miles for over 180,000 miles.