I'm new to the 3.0 crowd. I have a 2003 3.0 with 117,000 miles on it. It never missed an oil change. I was just wondering what oil and weight you recommend. In my 94 2.3, which I passed on to a new owner at 238,000, I used to run 10w-40 and Engine Restore at every 3000 miles. Should I continue to use the Engine Restore in my 3.0 and what weight oil should I use?

what doe sit say in you manual. 5w30? I would use what it says.........Mobil 1 FS with Motorcraft filter!

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2004 Ext Cab, 4WD, 4.0, Auto, 154k. (4.0 engine is out of a 2009 Ranger w/96k) ( as of 7/1/2017)

2004 Ranger, Ext Cab, 2WD, 3.0, 5 speed , 4WABS, crank windows, no cruise, Edge 116k.(6/5,2014) (SOLD).
1999 Ford Ranger, Reg Cab, 2.5, 5 speed, 2WD, no AC, 150k (SOLD).

If you dont have a owners manual look st my signature and click there.

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I run the factory recommended weight oil in a full synthetic with a motorcraft filter and change it at the factory recommended intervals.

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I looked it up in the manual for you..........5w20 every 5k miles. the book recommends synthetic blend. I would run full synthetic. I use mobil 1 and I would use a motorcraft filter Walmart has them for about $4

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2004 Ext Cab, 4WD, 4.0, Auto, 154k. (4.0 engine is out of a 2009 Ranger w/96k) ( as of 7/1/2017)

2004 Ranger, Ext Cab, 2WD, 3.0, 5 speed , 4WABS, crank windows, no cruise, Edge 116k.(6/5,2014) (SOLD).
1999 Ford Ranger, Reg Cab, 2.5, 5 speed, 2WD, no AC, 150k (SOLD).

I use Castrol Syntec Synthetic 10w30 and a Napa Gold filter and change my oil every 3k miles.

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Mods: Xcal 2, K&N Drop-In, Line-X, DSG Heads/Corners, 6000k Hi/Low HID's, 6K HID Fogs, Foglight Mod, Throttle Cable Mod, 6.5" Digital Designs, Rockford P400.4, 2 Sundown SA-15's, MB Quart DSC 2000.1d, Cranked T-Bars, 285/75/R16 Nitto Terra Grapplers

Shouldn't I run a heavier weight oil with 117,000 miles on it?

My truck calls for 5w30.........that is what i run, full synthetic. I dont burn or leak any oil.......if you don't use oil put in full synthetic with the recommended weight. you could try high mileage if you think it necessary

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2004 Ext Cab, 4WD, 4.0, Auto, 154k. (4.0 engine is out of a 2009 Ranger w/96k) ( as of 7/1/2017)

2004 Ranger, Ext Cab, 2WD, 3.0, 5 speed , 4WABS, crank windows, no cruise, Edge 116k.(6/5,2014) (SOLD).
1999 Ford Ranger, Reg Cab, 2.5, 5 speed, 2WD, no AC, 150k (SOLD).

no, you should run the oil weight that ford specifies. they recommend it for a reason.

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they call for a 5w20, if its not burning oil when hot theres no reason to increase the to a 5w30, however a 10w30 wouldn't hurt with over 100,000 miles on it. Like everyone said, Mobil 1 FS is the way to go.

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2003 Ford Ranger XLT 3.0L Flexfuel V6

Underdrive crank pulley
15x8 Procomp Xtreme Alloy 7069
31x10.5x15 Dick Cepek Radial FC II
Cherry Bomb Extreme

I have a 2000 3.0 my owners manual says 5w30 synthetic. for engines with a lot of miles i would replace a quart of engine oil with a quart of marvel mystery oil, that stuff is like liquid gold, awesome for fuel systems too

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2000 RANGER XLT 4X4 OFFROAD
3.0L Flex-Fuel EXTENDED CAB, STEPSIDE BED...
32" BFG all terrains, Stainless handles on side of cab, DeeZee chrome bed box, 2" black Bull Bar with lights, Alpine CDE-100 CD Receiver,
Front speakers-Kicker 07DS680 5"x7"/6"x8"s,
Rear speakers 5"x7" Polk Audio MOMO's in removeable boxes for audio outside the truck.

I would recommend 10w30 and replace one quart with Lucas oil treatment. I prefer using Castrol. The Lucas oil treatment is some really good stuff.

I have good things about pennzoil, valvoline, motorcraft, and royal purple. not too sure about other brands. Fram really sucks on a mojor level and castrol is a BP brand. We use motorcraft but im gonna try royal purple with my 3.0.

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SOLD:'05 2wd Ranger xl with the 3.0
MODS-Alpine head unit, throttle cable mod, Black Rock wheels, FX4 lvl II axle swap, pooleo's camo painted bezel and mustang dome, painted/aftermarket headlights/tails fold-a-cover and over 100 hp in stickers

'86 AMC Eagle and '01 Grand Prix GTP

Lucas is really good stuff. i use it every oil change.

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1997 Ranger primer 5.0 HO T5
1994 Ranger XLT Cayman Metallic 4.0 auto 2wd
1994 Ranger XLT Currant Red reg. fleet side 2.3L 5 speed 2wd
1999 Ranger XLT Jalapeno Green reg. cab flareside bed 3.0L I kind of wrecked this one.
1988 Bronco 2 Eddie Bauer 2.9L OUT OF ORDER

I have a "94" 3.0 w/171,000 miles....Could I switch to a synthetic oil or should I stick with the standard mineral oil?