Hey guys i drive a 2000 V6 3.0
I'm due for an oil change but i wanna switch the oil i use. Ive been using castrol and i dont like it. I had a friend reccomend Royal Purple. Im gonna look into it, but would you all reccomend? Also if i change my oil to royal purple should i change my differential to royal purple as well? I also need to change my differential fluid

I would recommend using the search function as this is a topic that's been thoroughly beat to death many times over.

__________________
2004 Ranger FX4 Level II, 5R55E, Sonic Blue Pearl

Proudly JAP/RICE free since March 2000

Using royal purple is just like throwing money into an oil drain pan, you aren't gaining anything that you wouldn't gain use a cheaper synthetic oil like shell rotella or mobile 1.

__________________
2014 F150 xl 3.7 6 speed auto.

If for some reason you're dissatisfied with whatever oil you're running and it's the correct viscosity, I'm pretty sure you're going to be very disappointed with whatever you throw in there. For this truck, oil is oil.

For this truck just find something you like its not high performance and unless you just beat on it its not going to see really high temps or heavy wear which is what oils like royal purple are designed for (IE race applications or the like). I use valvoline max life because i have a few small gasket leaks and it keeps it from dripping in my driveway and the price is fair for what you get. But for the most part oil is oil synthetic is not necessary in these trucks unless you like being able to go 5k miles between changes other than that really nothing to be gained over cheap conventional.

__________________
New DD-2009 Mustang GT/CS candy apple red

(For Sale)2003 XLT 5speed swap, Hurst Shifter, STX valance SLP drop coils, thunderbolt hood scoop,Screamin demon coil, Flo-pro super v, 1.8:1 Morana rockers, Roush sway bars, SCT tuned by Fred at Rogue, Taurus E-fan, 15x8 Torque thrust wheels gunmetal on chrome, Led 06 tails and smoked HID projectors, mud flap delete, painted drums/calipers, Rear flip kit.

Ford says Motorcraft synthetic blend 5w20.

X2, only oil my truck has ever seen.

__________________
'04 Edge, Scab/flareside, 2wd, 3.0, 5 speed, 4:10 open. Billet grille, Raceline Raptor black wheels, 265/75/16 DuraTracs. Tbar crank, AAL. Fox shocks, Thrush welded SI/DO swept back side exit. Morimoto projectors, '06 tails and power mirrors. LEDs all the way around. Blacked out fender badge. Access Limited rollup tonneau. 5% tint on back three windows. Airbox mod, FWIW. And a Border Collie that likes it too!!

*waits for Boris' input*

__________________
93 Ranger XL 3.0 V6
-Tint, wheels, K&N filter, Flowmaster super 44.
04 Mustang GT Vert.
-Tons of mods, supercharged 392/393

I just bought an '03 Edge with 88k miles on it and changed the oil and went with Mobil 1 full synthetic 5w20 and a Motorcraft FL-400S filter, I have been running Mobil 1 full synthetic in my other vehicles and been sending in oil samples pretty regularly as I do with my '99 F350's 7.3 and have been pleased when the company says everything is good with 12k miles on the oil.

This said I certainly see nothing wrong with the Ford/Motorcraft 5w20 synthetic blend.

I switched from Valvoline to Mobil 1 full synthetic in my ranger and my wifes car. Couldnt be happier. Always changed them close to 3K miles...maybe 200-300 past and the oil looks as if it could maybe last another 2k miles but im not going to chance it. Im a firm believer in 3k mile oil changes.

Im still running conventional valvoline in the white ranger since i just rebuilt the engine. Just did the first oil change after about 75 miles on the engine.
Will do the next change after 500-600 miles. And work my way up to 3000 miles. After a few 3k mile oil changes i will switch it to the Mobil 1 full synthetic oil.

__________________
1999 Ranger 3.0FFV-ExtCab-4x4-My 99 Build
1998 Ranger 3.0-ExtCab-4x4-PROJECT TRUCK-My 98 Build

Royal purple really only helps if you used from the beginning and never stopped using it

__________________
95 Ranger XLT 4x2 2.3 I4 5 speed 206,000 *dead*
96 Ranger XLT 4x4 4.0 V6 5 speed 173,000 *alive*
D35 front, 8.8 rear, 3.73 gears, limited slip rear diff