Is penzoil still parafin based? If it is, then good luck with that.

And I thought we were supposed to be using 5w-20?

 

yes. 5w-20 is the recommended weight. You can run different but the mds might not work with other weights of oil. I also run mobil 1 always have and always will. But brands of oil are kind of like brands of trucks, they all do the same job and have different performance levels for what you need, just use what you prefer.

 

The word paraffin is a very common and basic term for base mineral oil. The MSDS sheets for many motor oils use the word paraffin to describe the main oil ingredient...as in "SOLVENT-DEWAXED HEAVY PARAFFINIC PETROLEUM," which is how Valvoline phrases it in their MSDS sheets.

ParaFfin is the proper organic chemistry word for aliphatic hydrocarbons...more commonly known as oil. It is also the correct name for wax and candles. But there is as much difference between paraffin wax and paraffin oil as there is between a chestnut horse and a horse chestnut. They just ain't the same thing. Don't matter whether you're talking about Pennzoil, Castrol, Valvoline or your wife's Christmas candles. If you like Pennzoil, use it worry free. Hope this helps.

 

I have used 5w20 and 5w30 and have found no difference in mds operation or fuel economy. 5w20 is rarely on sale in my neck of the woods and 5w30 is on sale a different brand every week. I have used full synthetic since break in and when you can buy it at 40% off I don't care to leave it in for 10,000 miles. My oil change light usually comes on between 4000 and 5000 km and depending on the colour of it and time it has been in there I change between 5000 and 6000 km. I have used Pennzoil Platinum in our van (2004) and it runs as good as the day I bought it and I also use it in the Ram and have no complaints.

 

Considering I made the post from my phone and comparing to how other people butcher the English language on this forum, I think you could find much better victims to antagonize with grammar corrections.

And the way it was explained to me was that Penzoil used to include paraffin wax as a cleaning agent in their oils. It has been a long time since I read up on them hence the question.




Using anything other than 5w-20 is not recommended and not just for the sake of what Chrysler says. Well, actually it is. Say you think that your use of a different oil weight makes no difference in the way your truck runs... A year or so down the road, you drop a cylinder or burn a bearing out and take your truck to Chrysler for warranty work... I can absolutely guarantee that they will test the oil to see if you were running the correct weight. They do this in the HD line as well as the light duty trucks just as the first thing they do is hook your truck into a computer based reader that phones home to Chrysler in seconds. And yes, they do indeed do that. More common on the HD Diesel trucks, but they have been known to do it to the Gas burners as well.


If you read your manual, you will see that the weight of the oil you use is optional like the octane of gas is. You'll see that the manual says to use that weight of oil and only that weight. Of course, if you don't have the Hemi, I'd say you're actually ok, but if you do, then it's not a smart idea. Sure, the difference between a 30 weight and a 20 weight is splitting hairs, but it could be enough to cause problems that you can't see, feel or sense with any of your senses.

 

Laramie1997 already said it....
Mobil 1 and Valvoline as a close second.

AGREED...!!!!!!!!!

 

Alot of dealerships in my area quit using pennzoil because they said it was sludging up the hemi engines, and they were also seeing issues with the MDS not activating properly on the newer hemi engines using 5w20 pennzoil. (thats good enough reason for ME not to use it...!!!!) I believe pennzoil is now owned by quakerstate...has been for awhile last i heard. (pennzoil`s factory in PA has been shut down for a long time since QS bought them out, and i think its all made in texas now) Quakerstate also sludged up 2 of my engines and i quit using it awhile ago. I have used Mobil 1 and valvoline ever since. I`ve never had an issue with several hemi vehicles i`ve owned since 2003 by using Mobil 1 or valvoline synthetic. Valvoline also has a 300,000 mile guarantee too. (as long as you register your vehicle on line with them, they`ll cover it for 300,000 miles)

 

Check out Bobistheoilguy.com. Good info on oil.

 

Hi I'm Ricky Bobby and if you don't use Mobile 1 motor oil, than *** you. lol

 

Mobil 1 is amazing stuff, even today. I run it in the race car, the dak, and the wife's charger. Valvoline is just as good.