Just wondering where you do it yourselfers find the 0W40. Looked at a few auto parts and wally world. No one has it. Called my dealer on the oil filter $18.50. Thought it would be higher than that. Mopar parts wanted $13.00 but, $5.00 shipping.

 

Crazy, isn't it?

I've looked at Meijer, AutoZone, Pep Boys, Murray's, etc for this oil. NOBODY has it.
One possible source is online, per the below.

http://www.amazon.com/gp/product/B00...53294&v=glance

$6.49 a quart from Auto Barn, plus $7.50 to ship all of the quarts it is going to take to get the job done. Do a few Google searches, and see if you can get it any cheaper.

 

auto barn, price club (costco), US1 auto parts. $6.50 a quart is high to start, then you have to pay shipping? yeow.

 

I saw it for sale at my local AutoZone...

 

I'm actually going to run the new Mobil 1 "extended formula" in my Crossfire. Now its thicker (15w50) but I don't see a problem with running it, after all, in the past I've run thicker grades w/o a problem. Case in point, my used 87' Grand National that I bought in 95' w/ 87K on the clock, I ran 20w50 Mobil 1 in that and it called for 1ow30, so I don't see a problem. Anyone have a problem with running heavier oil in the Crossfire?

 

I would imagine that running heavier oil will cost you some hp, since you have more parasitic loss due to windage. Any reason you want to run it, other than it's probably easier to find on the shelves of your local auto parts store?

 

Seeing that its the "extended life" formula, it says 15K or one year, which ever comes first, so thats the main reason.

 

I buy it at the AutoZone in Fulton - 5.50/qt. Also, they will accept my used oil for recycling at no cost, so I can just swap them when it's time to change the oil.

 

WalMart, $4.98 a quart.

 

i wouldn't advise running that thick an oil in the car. they obviously want the super low viscosity for something, and if you go to a 15- its gonna take a l o n g time for the oil to get pumped up to the top of the engine. especially now that the winter is coming. if you're ever going to use a heavier oil, do it in the middle of the summer.

 

Well said, you hit the nail on the head.

 

ditto!!!!!

 

The "border line pumping" of the oil is the real concern.
0W-XX is about -20 deg. F,
10W-XX is -4 deg. F
15W-XX is +5 deg. F
20W-XX is about 15 to 20 deg. F

If the cold crank capability of the pump can not handle a heavier oil then you will have a dry start of the engine. Also, depending on how the pump was designed, it may not be able to handle a heavier oil and literally destroy it's self. Knowing that all of the auto manufacturers are designing for better fuel economy, components are getting lighter, I wouldn't recommend jumping 3 - 4 grades of oil.

 

Mobil 0w40 at Advanced Auto Parts for $5.44 per quart.

 

I have purchased it at AutoZone.
If they do not have it then ORDER a case...
It will usually arrive at the store in 3-4 days unless you live in the sticks...
Simple as that.

Regarding using a heavier oil...

I would shy away from that at all costs. The engine is manufactured with very close tolerances and as such the thin oil is required to wet moving parts, main bearings and such.

About 3 months ago, I called in this question to National Public Radio's talk show "CAR TALK".
Click and Clack were quite emphatic that if an engine calls for the new 0W-40 that heavier oils should not be used unless the owners manual specifies such.

 

if your main bearings are moving parts, you have an even bigger problem than your oil weight!

 

I get the factory oil at Wal-Mart, it says "European Car Formula".

 

Let me run this by you guys then. I don't plan on driving my car during the winter at all, so what if I left the old oil in there. Its roughly going to be 7,800K and then change the oil in the spring and then put in my "extended life" Mobil 1 15w50? I never had a problem running heavier oil in the past, but with all this tolerance talk, its got me thinking a little bit.

 

no way. no 15w50 at all. 0w40 only -- i have used it too; heavier oil used to be ok on a tired v8 to fill in for wear on parts, but with this engine i wouldn't try it --

7,800K... you measure in kilometers?

 

No, its going to be about seven thousand eight hundred by the time I change it. Here's what I'm going to do since I bought that "extended life" Mobil 1 already. I'm going to go out and buy some 0w30 (case) and then add (2) quarts of the "extended life" oil to that, thus giving me pretty much the multi-viscosity I need after the blend. The rest of the oil is going into my wife's Ranier in the spring. I went from 12.5K to about 29K w/o changing the oil, I use Mobil 1 in that, but I did change out the filter at 7.5K and used a Mobil 1. Recently Buick offered us a free oil change under "customer appreciation" day, so I let them use regular motor, but in the spring, its back to Mobil 1 and only changing the oil filter. You may ask why I do this and its because of a book called "The 3,000 mile lie". It pretty much states when you run synthetics you only need to change the filter, using a quality one at that. The guy who told me about this and believes in it is an ex-Ford engineer from England who was the chief engineer for the Ford Contour back in the mid 90's. This guy is one of the smartest people I've ever talked to about cars, so I believe him.