At least the 50th... but as product-lines change and availibility changes, I guess that's why the discussion keeps coming up over and over again... Pennzoil Platinum wasn't around 5 years ago (0W-30 Mobil1 was, but limited), etc etc

 

I use Castrol Syntec 10W-30. Full synthetic, it's been good to me. Heard a lot of good stuuf about Valvoline too

 

you are the only person that i have ever came across anywhere that ever even heard of BradPenn oil. congrats to you man. you must know a thing or two about lubrication.

 

Yes, I am serious. I have never pushed it that far without using a Mobil1 filter though. Remember when Mobil1 used to gaurentee 15k on an oil change... well, the catch to it was they would only gaurentee it if you used the filter. Well, over 15k miles went by and I drained my oil (and about 4 qts came out, oil and filter total). Looked pretty consistent for that many miles... I do a lot of highway driving btw. Haven't ever pushed it that far before or since, but I was impressed anyway.

 

Same here.

 

Simply put any GF-4 rated motor oil (I actually asked for the specs of MS-6395 and received it from Chrysler and it was line for line GF-4 when my 04 was built) will do just fine.

I actually ran 10W-30 Havoline in a Chicago winter and got a fabulous Used Oil Analysis back. No problems. That being said 5W-30 is preferred. 0W-30 being a Syn is even better ALL YEAR long. It just is closer to operating viscosity when cold then 5W-30 is. Yup even at 80 degrees or more. Operating temp of 212 will have the viscosity at about 10.5 for XW-30 but at say 70 the 0W will be say 60 (above the required viscosity) the 5W might be 80 and the 10W say 100. As the heat up they all get closer to the recommended 10.5.

If you use a synthetic you should easily be able to go 7500+ miles/1 YR per Oil Change Interval. Conventional oil will easily go 5K/6M today.

So if you use Dino get 5W-30 of your favorite brand and smile and be happy.
If you use Syn and you favorite brand offers 0W-30 (and you don't have to pay a premium or VERY little) use it, if not just get 5W-30.

If you get a lot of consumption change your PCV valve and get a different brand and see if things improve.

IF you have an 05 model substitute 20 every where 30 was used above.

 

-I still use Pennzoil Platinum 5w20 in mine along with a NAPA Gold(Wix) filter. But she only has 33k on it.

L8R,
Matt D.

 

That's all well and good, but I care about two things... what the oil does on a cold start, and what it is doing @ operating temperature.

Mobil1 Synthetics:

0W-30 - cSt @ 60C = 63.1, 100C = 11.0.... pour point = -54 degrees
5W-30 - cSt @ 60C = 64.8, 100C = 11.3.... pour point = -48 degrees
10W-30 - cSt @ 60C = 62.0, 100C = 10.0... pour point = -45 degrees

I couldn't find the cSt rating for 85C, which is right below where our engines like to operate. I do have it saved at work, which I can link up tomorrow. But between 80 and 90C, the 0W-30 is actually has the higher cSt out of the three.

Notice anything else interesting?

Btw, at 0C, the 0W-30 runs away from the 5W weights by hundreds of points on the cSt scale, and beats the 10W-30 by almost a thousand (in the negative, meaning thinner when cold).

 

Have to keep the drag cars lubricated and we use brad-penn "the green oil"

 

Unfortunately most Neons aren't drag-cars lol.

But Brad-Penn does offer a nice 0W-30 as well, if you can find it...