Help me out (recomendations needed)

Status
Not open for further replies.
Joined
Jul 11, 2004
Messages
14
Location
Oklahoma City
1997 F150 4.6 V8 with 130,000 oil change is coming up in about 150 miles. I got this truck not that long ago so I dont know what the last owner was using, I am leaning toward the M1 5w30, the manual calls for 5w30 Also, Oklahoma weather here, so take that into consideration.
 
Joined
Mar 19, 2003
Messages
699
Location
Texas
Is 0w-30 GC (Castrol Syntec) an option? It's at Autozone BTW. Also, before going to a synthetic (unless it was used previously) I would flush out the engine using Auto-RX.
 
Joined
Mar 19, 2003
Messages
699
Location
Texas
quote:
Originally posted by Jose314: is it better to just go to 0w30 instead of sticking to the 5w30?
Well, that's where it gets sticky. Mobil 1 xw-30 weights are pretty thin. The GC 0w-30 is a bit thicker. You will have to choose between the thin or thick side. Everyone has their opinion. I'd go with the GC 1st and see how it goes.
 
Joined
Jan 25, 2003
Messages
4,630
Location
Decatur AL USA
Actually Ford now recommends 5W-20 for that engine. They have back recommended it for all the SOHC 4.6L V-8. That said you have to decide how thick a oil you like. All viscosities below at 100°C (212°F). Results from actual VOA's Motorcraft 5W-20 Blend = 8.9 cSt Motorcraft 5W-30 Blend = 11.1 cSt Mobil 1 10W-30 = 10.5 cSt German Castrol Syntec 0W-30 = 12.3 cSt For my money I would run Motorcraft 5W-20 Synthetic Blend in the winter and Motorcraft 10W-30 Synthetic Blend in the summer (10W-30 Blend will not be out until spring). With the designed in shear of "Energy Conserving" 5W-30 I cant figure out any reason not to start with 5W-20 to begin with. For $1.42 Qt at Wal-Mart Motorcraft Blend is hard to beat for 5,000 mi oil changes. For 10,000 mi changes the Autozone's German Castrol Syntec 0W-30 would be hard to beat. Gene
 
Status
Not open for further replies.
Top