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2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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Old 11-16-2010
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I am: nate vandeburger
Join Date: Sep 2010
Location: caledonia wisconsin
Vehicle: 2002 ford ranger
Posts: 5
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oil weight

Ok my 02 ranger says 5w-20 on the cap, but my owners manual says 5w20, 5w-30. Is it ok to use 5w-30 in it? Both oils have to same cold flow characteristics dont they? I use full synthetic and am considering switching to 5w-30 simply because no one makes a 5w-20 full synthetic high mileage.
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Old 11-17-2010
I am: Ken Here
Join Date: Mar 2007
Location: Upstate,NY
Vehicle: 2003,Ranger
Posts: 2,598
Total Props: 13
I'm sticking with Mobile 1 5w-20.
The main reason is the cam syncro assembly which drives the oil pump. I changed mine out before the bearing got too bad. The bottom bearing is splash lubricated through a hole that is only around 2mm diameter. Too heavy an oil won't flow enough to keep the bearing lubed. Result is an oil starved engine when the pump drive quits.
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Old 11-17-2010
Scrambler82's Avatar
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I am: Grev B
Join Date: Jul 2009
Location: SoCal
Vehicle: 2003 Ford Ranger
Drive Type: 4x4
Engine: 3.0
Posts: 6,627
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x2 on Mobile 1 5-20; my 3.0L has known no other.

Not sure about your truck but both my 5.0L and the 2.3L got noisy when 10-30 was used but 5-30 not sure.
Try it and if the rockers get loud then change to 5-20.

IMHO...Stick to 5-20W unless you have unusual situation for heavier weight oil.
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Old 11-18-2010
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I am: Corey Ernst
Join Date: May 2009
Location: Kansas City, MO
Vehicle: 1998 Ford Ranger
Posts: 380
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you can use 5w30...it is just a little thicker than 5w20 when up to temperature. same flow at low temps, thicker at high.

Valvoline's MaxLife does come in a 5w20, you might have to see if your parts store will order some in special for you. My '98 is backspec'd to 5w20...but since I'm on track for only 7k miles per year...it is going to take me a while till my next change.
Advance Auto Parts: MaxLife 5W-20 Synthetic Blend Motor Oil (1 qt.) by MaxLife - Part VV169
I know my Advance does not have that readily on the shelves...but I'm sure they could get my order in within a few days.

Oh, and Castrol makes a 5w20 high mileage oil as well.

Mine: '98 Ranger XLT 3.0L SuperCab w/ manual 4x4 "Off Road" 193k miles
Wife: '07 Mitsubishi Outlander LS AWD 3.0L 128k miles
My 3.0 puts out 150HP...hers puts 220HP...something is wrong here!
Future Restoration: '77 Chevy 2WD K5 Blazer

Last edited by ccernst; 11-18-2010 at 10:12 AM.
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