I am just curious as too what yall use. I am using 5w-30 castrol syntec. Didnt see any difference coming from regular castrol gtx. I am thinking mobil 1 this next oil change

 

5W-30 Castrol GTX...soon to be valvoline max life

 

I think I've seen a new thread on this topic almost every day. I use Royal Purple.

 

motorcraft 5w20 synthetic blend

 

motorcraft 10w30 syn blend...

 

I just changed my oil for the 1st time and put in Castrol edge. New truck is 2010 4.0. Old was 2002 3.0. I remember seeing a thread on how messy it was to chang the 3.0 oil but I made the biggest spill today with the 4.0. Maybe just not sure of where to line up the drain pan with the plug on the side rather than the rear of the pan. And wasn't much better with the filter. Had the 3.0 down pat.

 

american syntec is the biggest waste, its still a group 3 just like dyno oil.

 

I use Syntec 5W30. Some say it's good, some say it's bad. Seems to work for me! Got a good deal on some at Walmart the other day... they had jugs of it for $12! It's normally like $30 here!

 

Mobil 1 5w-30
Great stuff. Also Mobil 1 oil filter.

 

Ive use Mobil 1, 0w30 in for winter and 5w30 for summer. pureone filters.

 

I think i am going to go with mobil 1 5w-30 with their filters. I am going to do a good seafoming with my old oil tho. Hope to clean out my engine a bit. Anyone experience and cons with this oil?

 

i use mobil 1 5w30 and filter. truck runs great. nothing really to compare to though, only changed oil once.

 

mega super ultra ...i get it shipped from fort mcmurray.

 

Who makes that?

 

Peter griffin? lol nobody dood.

 

Why don't you guys set up some sort of window prompt before a new thread is created that says......"have you tried searching the topic your about to post?" in crazy neon fonts. Meh?

 

Nothing but Mobil 1. 5-30 EP. Good for 15,000 miles. I've got 251,000+ miles on the odometer with no internal repairs. Don't bother with Seafoam or other cleaners. The Mobil will clean things up.

 

Quaker state 5w-20

 

Mobile 1 10w30 / PureOne .... But I don't have the temperature fluctuations that most of you do..
If I lived up north it would still be Mobile 1 maybe a 5w30

 

5w30 motorcraft syn blend with motorcraft filter.

 

valvolvine 5w30 100% syn power

 

I use generic discount store full synthetic. Much cheaper than the name brands so I can change it regularly without going broke. I'm too much 'old school' to run anything close to a 15K synthetic change interval. I usually run 5W30 in winter, 10W40 in summer in the Ranger and 5W20 in the Focus and Fusion year round.

For filters, I use Purolator or Motorcraft.

 

Mobil 1 5w20 w/ Mobil 1 Filter, change it every 10K miles.

 

I use Ford oil an filters. Works for me.

 

Valvoline Conventional then Synthetic Blend. I've only changed the oil twice and that's what I used. When I bought it my dad had Castrol GTX put in it at a shop. I just do the recommended oil type on the core support sticker. I think it changed in 2003 or something though. They all ran fine but my engine has a tick from the DPO so I just nurse it and drive it.