[claytucc3]

What weight of oil do you guys use. Has anyone found a 5/20w synthetic oil?

[TARZAN]

I use 5W/30 and mine runs good.....

ITs getting close to winter, so I'm trying not to get tooo thin of an oil

-Will

[try2catchmy99]

I know Royal Purple sells a 5/20W

[decoy562]

Originally Posted by TARZAN

I use 5W/30 and mine runs good.....

ITs getting close to winter, so I'm trying not to get tooo thin of an oil

-Will

Me too. 5w30 Mobil 1 synthetic.

[Mister Stang]

Most modern engines are optimized to run on 5W/30 no matter the weather conditions, so I wouldn't change it too drastically.

[Dark Knight GT]

Mobil 1 makes a fully synthetic 0w-20 weight motor oil. Its to be used in place of 5w-20. Royal Purple makes a full synthetic 5w-20 as well. I believe Amsoil does too but not 100 percent sure.

If you cant find any of theese, just use a 5w-30 weight. The viscosity differences between the two are minimal. Generally speaking, 5w-20 weight is better for winter and 5w-30 is better for more protection when its warmer.

[gsmith]

I use Mobil One 5w-30 in both of my cars, never really gets too cold in Houston though. No problems with Mobil One what so ever, required in the vette. So I started my stang out with it also.

[fr96ss]

how is 5w 20 better for winter that 5w 30 if the low number is the same the cold startup oil flow is the same 20 and 30 have nothing to do with winter weather.

[GT_2001]

Amsoil 5w-20 here!

[Dark Knight GT]

Originally Posted by fr96ss

how is 5w 20 better for winter that 5w 30 if the low number is the same the cold startup oil flow is the same 20 and 30 have nothing to do with winter weather.

Sorry, Im thinking of multi-viscosity oils vs. straight weight oils.

[snkypete]

I run Amsoil Series 2000 0w-30. They do make a regular synthetic 5w-20.

[stngmn96]

I used 5w30 Castrol Syntech in my 96 GT with wondefull results and 127,000 miles on it. The car now runs on Amsoil 5w30 and amsoil filters. The car used K&N oil filters or mobil one filters, bosch makes a good one too. Stay with the 5w30 Autzone sells 5w20 in Motorcraft OEM oil, but it's not always in every store.

[jadesville]

5w30 mobile 1

[Kraw]

5w20 Motorcraft semi-synthetic

Works well and satisfies all my warranty issues. Cheap too

[AdRock]

South Texas here, 10w-30 AMSOIL

[rdgdawgGT]

Amsoil 2000 0W-30 here in Atlanta... only oil I'll ever use again in any of my cars.... 15K-20K miles per change, even though it's good for 25K+... car runs better, better mileage...

[decoy562]

Originally Posted by rdgdawgGT

Amsoil 2000 0W-30 here in Atlanta... only oil I'll ever use again in any of my cars.... 15K-20K miles per change, even though it's good for 25K+... car runs better, better mileage...

You change your oil only every 20K miles?

[snkypete]

Yes, with a GOOD synthetic it can last well over 20k miles (assuming the filter is changed as scheduled). Oil color is irrelevant, and only the dino juice dies quickly. Again, the ONLY way to tell if the oil needs to be changed is with an analysis.

[Modular2v]

I dont care what kind of oil you run, it isnt good to change your oil every 20,000miles!!!!!! Thats insane. Oil is supposed to be changed every 3,000 miles under NORMAL driving conditions. Normal in this case means that you dont flog the car too often and you spend half of your time on the freeway and the other half in the city stop and go driving. I change my oil every 2500miles. I work in a lube shop and it is amazing how people dont take car of their cars. A car came in the other day and it had been 35,000 miles since his last oil change. He said that he didnt know he needed to change it. When we added new oil he started smoking really bad out the tail pipe my best guess was he ruined his piston rings. It was on a 5.0 explorer. That just amazes me that people would go that long without changing their oil.

[Stangly w/03 GT]

I'm using 0W-20 Mobil 1. Put it in last week & I went through the same delima as you are going through right now.

Good Luck!

[Ghost001]

I talked with an Amsoil lubrication specialist, and he said the Amsoil 0W-30 is far superior to the Amsoil 5W-20.

I'm guessing that the Amsoil 5W-20 is a diluted version of the 0W-30, although I don't know for sure.

So I use Amsoil 0W-30.

Then again, I'll never take my Mustang GT to a dealer for service or repairs, so I'm not worried about the warranty.

Currently, I have been using Amsoil 0W-30 for almost all of my 30,000 miles, and I've never had any problems.

[SilverGTV8]

Royal purple 5/20 with K-N filter, every 5,000 miles religously!

[Dark Knight GT]

Originally Posted by RED98Z28

I dont care what kind of oil you run, it isnt good to change your oil every 20,000miles!!!!!! Thats insane. Oil is supposed to be changed every 3,000 miles under NORMAL driving conditions. Normal in this case means that you dont flog the car too often and you spend half of your time on the freeway and the other half in the city stop and go driving. I change my oil every 2500miles. I work in a lube shop and it is amazing how people dont take car of their cars. A car came in the other day and it had been 35,000 miles since his last oil change. He said that he didnt know he needed to change it. When we added new oil he started smoking really bad out the tail pipe my best guess was he ruined his piston rings. It was on a 5.0 explorer. That just amazes me that people would go that long without changing their oil.

Anybody that would go that long without changing their oil and make the claim "they didnt know it neeeded changed" need some serious help.

[adamb258]

north texas what should i use

[snkypete]

Originally Posted by RED98Z28

I dont care what kind of oil you run, it isnt good to change your oil every 20,000miles!!!!!! Thats insane. Oil is supposed to be changed every 3,000 miles under NORMAL driving conditions. Normal in this case means that you dont flog the car too often and you spend half of your time on the freeway and the other half in the city stop and go driving. I change my oil every 2500miles. I work in a lube shop and it is amazing how people dont take car of their cars. A car came in the other day and it had been 35,000 miles since his last oil change. He said that he didnt know he needed to change it. When we added new oil he started smoking really bad out the tail pipe my best guess was he ruined his piston rings. It was on a 5.0 explorer. That just amazes me that people would go that long without changing their oil.

It only amazes you because you don't have a clue as to oil properties and are basing your OPINION on what the oil companies tell you.

Have you ever ONCE had your oil analyzed?????? The guy who let it go 35k going to a lube shop was not running synthetic I'd bet, and definitely didn't get it analyzed. There's a HUGE difference between some idiot who doesn't know he's supposed to change his oil, and an enthusiast running a high performance oil.

If you change synthetic oil every 2500, more power to you...you're just wasting your time and money. I get my oil analyzed every 10k and it comes back fine.

So please, while you're welcome to your OPINION, stick to FACTS - of which you have ZERO. *GOOD* synthetics (Amsoil, Mobil1, RedLine, Royal Purple) can easily exceed 3,000 miles. I suppose my friend with 93k on his Excusrion's oil with testing done by an INDEPENDENT LAB is just a myth???? Results finally came back "oil cannot provide adequate protection and should be changed".....

You probably think that only a Ford technician can work on your car because that is what the dealer told you