10W30 or 5W30

ricklee4570 · 09-17-2008, 03:49 AM

What do most of you guys run? I have heard that if you have over 100,000 miles you should run 10W instead of 5W.

*Willard* · 09-17-2008, 06:13 AM

I'm at 216,000 and still run 5W. There is really no reason to change.

Potomac30 · 09-17-2008, 07:30 AM

I run 5W30 in the explorer. The "5W" is how the oil acts when cold (W inter). 5W is thinner at cold cranking than 10W. It still acts like 30 weight oil at operating temperature. I put 0W30 synthetic in a couple of my other vehicles.

*Blacksheep Josh* · 09-17-2008, 11:57 AM

I run a 10w-30 merely for how hot it gets here in the Summer. A mechanic of about 40 years told me 5w-30 through my engine was like water going through it.

Granted he was drunk when he said it, lol, I trust him. No problems though after 2.5 years of running it.

mowermechanic · 09-17-2008, 10:34 PM

by the time i'm done with my engine, i'll be running 20W50....

icom · 09-17-2008, 10:40 PM

Quote:

Originally Posted by mowermechanic

by the time i'm done with my engine, i'll be running 20W50....

rattle does it ??

I'm thinking of putting 15W40 in mine this weekend

mowermechanic · 09-18-2008, 12:03 AM

2 cases of 20w50 for $30, CASTROL GTX!! woo... why not? like it ever gets cold on the washington coast. As long as the lower side of the rating is good for the colder temperatures you might encounter, then no problem.... less oil consumption, quiets things down, a little less MPG but that's about it, maybe 1/2MPG lol

mawrazen · 09-18-2008, 07:35 AM

I use 5w30 synthetic in my 94 EX. Its now at 261k+ miles and it runs fine. The only reason people use heavier weight oils is because the oil leaks.

If you are not leaking or burning oil, 5w should be fine.

There aint no leaks on me. "truck-boat-truck"

09-17-2008, 03:49 AM	#1
ricklee4570 Wannabe Elite Explorer Virginia 1994 Join Date: Aug 2008 Posts: 36 Vehicle Specs (Original Poster)	10W30 or 5W30 What do most of you guys run? I have heard that if you have over 100,000 miles you should run 10W instead of 5W.

09-17-2008, 06:13 AM	#2
Willard Elite tree-smasher Bloomington, Indiana 04 Ranger Edge Join Date: Mar 2007 Posts: 3,291 Vehicle Specs	I'm at 216,000 and still run 5W. There is really no reason to change. __________________ Jesse '94 Eddie Bauer DD/Beater "Old Faithful" RIP '04 Ranger Edge DD "Black Knight" You want to see my face?

09-17-2008, 11:57 AM	#4
Blacksheep Josh Slinky+Escalator=Fun Statesboro, GA 1993 Ford Explorer XLT Join Date: Jul 2006 Posts: 3,566 Vehicle Specs	I run a 10w-30 merely for how hot it gets here in the Summer. A mechanic of about 40 years told me 5w-30 through my engine was like water going through it. Granted he was drunk when he said it, lol, I trust him. No problems though after 2.5 years of running it. __________________ "Thunder" Registry R.I.P. 2005-2012 2001 Ford Ranger (New!!) "You can hear me when I'm coming" - Yung Joc

09-18-2008, 07:35 AM	#8
mawrazen Wannabe Elite Explorer Atlanta, Ga 94 Eddie Bauer Join Date: Jun 2007 Posts: 509 Vehicle Specs	I use 5w30 synthetic in my 94 EX. Its now at 261k+ miles and it runs fine. The only reason people use heavier weight oils is because the oil leaks. If you are not leaking or burning oil, 5w should be fine. There aint no leaks on me. "truck-boat-truck" __________________ Faith is the evidence of things hoped for, the substance of things not seen. Ford count: 94 EB Ex (303K miles) , 94 Mustang Convertible, "Don't touch the TRIM!" Freedom IS NOT Free! Sometimes I'm here, but mostly I'm gone.

09-17-2008, 07:30 AM	#3
Potomac30 Wannabe Elite Explorer IRMo, SC 1993 XLT 4WD Join Date: Jun 2007 Posts: 150 Vehicle Specs	I run 5W30 in the explorer. The "5W" is how the oil acts when cold (W inter). 5W is thinner at cold cranking than 10W. It still acts like 30 weight oil at operating temperature. I put 0W30 synthetic in a couple of my other vehicles.

09-17-2008, 10:34 PM	#5
mowermechanic Wannabe Elite Explorer Federal Way, Wa '94 Limited Join Date: Sep 2008 Posts: 57 Vehicle Specs	by the time i'm done with my engine, i'll be running 20W50....

09-18-2008, 12:03 AM	#7
mowermechanic Wannabe Elite Explorer Federal Way, Wa '94 Limited Join Date: Sep 2008 Posts: 57 Vehicle Specs	2 cases of 20w50 for $30, CASTROL GTX!! woo... why not? like it ever gets cold on the washington coast. As long as the lower side of the rating is good for the colder temperatures you might encounter, then no problem.... less oil consumption, quiets things down, a little less MPG but that's about it, maybe 1/2MPG lol