Tag Archives: oil

Where can you buy the oil and filter for a 2021 Ram 2500 with a 6.4 Liter Hemi ?

I bought my 2021 Ram 2500 in September 2021. It was my first brand new truck and when I saw what the dealer was charging for oil changes, I knew there was no way I was going to have them work on my truck – I’ve always done my own work but because this may well be my one and only new truck, I knew I better do some homework.

First off, I did not want to void my warranty. In talking with the dealership their recommendation was that I only use Dodge/Mopar brand oil filters and Pennzoil Platinum 0w40 engine oil plus I should keep a log of when I changed the oil, filter and with what. Okay I thought – I can do that.

This is a great example of where the Internet and the web can just drive you nuts. If you search about what oil and filter to use, you will get just a ton of search results with guys offering up their weird home brew concoctions, using different weights, brands, etc. That was all fine and dandy but I did not want to void my warranty or give a dealership some excuse to charge me because I didn’t use the approved oil.

Which filter does it use?

If you want to stick with factory parts to avoid warranty headaches, you need the Mopar MO-339 filter. I am using the 04892339AB but am told there is now an AC part number. Regardless of the letters, I would not be concerned if searching turned up an AA, AB or AC. The main thing is that the correct model is MO-339.

This is the correct model number – Mopar MO-339. Sure, there are other quality brands of filters out there such as Wix but my intent is to use Mopar filters until the warranty expires. Then I will move to Wix or whoever is best at that time.
FCA is Fiat Chrysler Automobiles. They are now owned by Stellantis – just FYI. The part number is 04892339AB. The last two letters reflect minor revisions to the base numeric part. For example, 04892339AA would have been a previous version of the part. Odds are it would work ok if you find it. I always go for the most current part number I can find because usually they are trying to improve/fix design issues. The AB series started in 2019. I saw an AA filter that was marked 2009-2011 and recently read there is an AC series but I have not seen it personally.

Where can you find the Pennzoil Ultra Platinum Full Synthetic 0W40 Oil?

You are going to need 7 quarts of oil if you change the filter and I always change the oil and the filter. I am used to walking into Autozone, O’Reilly’s or Walmart and buying oil. They do not carry this weird Pennzoil “Ultra Platinum Full Synthetic” 0W40 that Dodge was specifying. Apparently there were some office politics about switching to Pennzoil and to lock people into using Pennzoil plus being more likely to go to the dealership for oil changes they (I’m not entirely sure who “they” are but will blame both Dodge and Pennzoil) – they came up with this odd spec that really wasn’t required. Stuff like that irritates the hell out of me – they could have specified something else and made it easier for all of us.

At any rate, as mentioned, I am sticking with what Dodge specifies through the warranty period. The dealership will usually sell it but do you know where I found it and at a far better price? Amazon – yeah, Amazon. It’s the cheapest and most convenient source I have found and is also why you will find thousands of reviews. Again, remember you will need 7 quarts.

With the supply chain and economy having so many issues, I bought four cases (there are 6 quarts per case). They showed up at my door the next day – it was great!

Quick comment on my experience so far

My first oil change some time late last year was quite an experience. The oil filter had “factory installed” printed on it and boy, it did not want to come off. I wound up using a vise-grip type oil filter wrench to get a good enough hold to finally break the seal and spin it off.

I just did my second oil change getting ready for Winter and rotated the tires also [click here for a post about how to do that the easy way]. I figured I would take a minute and share with you where to buy the filter and oil from and hope this helps you out.

The filter is located just to the left of the bottom of the lower engine’s crank pully. An end cap filter wrench/socket makes changes really easy. For the first one, the factory installer went nuts either torquing it down or the seal stuck to the block – I’m not sure which it was but I had to really crank down with a locking oil filter wrench to get it off.
A 76/14 (76mm with 14 flutes) oil filter end cap socket is the size you need. Mine is made by Lisle and their stuff tends to be really good. Definitely get one for going forward. Mine could not break the filter lose the first time but it wasn’t the socket’s fault – the filter’s flutes rounded over it was on so hard.

By the way, the torque spec for the oil drain plug is 20 foot pounds. Now I know some guys just feel how tight to go by hand and I did that for over 30 years but now do to nerve and muscle damage, I can’t tell how tight I am pulling so I torque to spec – totally up to you.


Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.

If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at [email protected]. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.


Are You Looking For A Lubricant That Performs Better Than CLP? Check Out Kentuckiana Gun Works – Enhanced Reliability Oil

So I stopped in to talk to Scott Igert, my good friend who owns Michigan Gun Exchange, a few weeks back. Scott told me about a new gun oil that he had samples of that the maker had handed him directly and that I ought to take a look at it. I kind of groaned because everyone and their brother claims to have the best gun oil. Some have ok oil and some don’t (remember the canola oil mess some years back?) but nobody has THE best oil.

Many times the oils they are selling you are an existing product that has been put into tiny containers with some really splashy marketing and packaging. For example, if you find a red colored weapon oil that feels, smells and is colored red like ATF, then it is probably some variant of automatic transmission fluid – Dexron, ATF, etc. If it’s colored blue and smells and feels like hydraulic fluid then that might well be what it is. Now I am not saying all products are that way but a lot are.

So, somewhat warily, I took the sample bottle home with me. It had to wait a bit until I could get around to focusing on it. The product is “Enhanced Reliability Oil” From Kentuckiana Gun Works (KGW).

In looking at the oil, it was yellow-ish with a hint of red. It’s a blend of something – but not something right out of a bottle. I felt it and it had a nice 30 weight-ish feel to it. It wasn’t really thin but it was slippery.

The smell was that of a petroleum oil but nothing uniquely stood out.

Did I taste it … no, I have standards to uphold at least while I am sober.

Okay, those quick observations may sound ridiculous to you – well, the taste part was a joke – but many products you can kind of group by color, feel and smell. This one I couldn’t because the color was unique plus it felt like a decent lubricant so I decided to dig a bit more.

I took a few drops of some common lubricants and put them on a piece of white printer paper. Left is the KGW product, then Super Lube, them CLP, followed by Mobile 1 5w-30 synthetic engine oil and finally Pennzoil Platinum Full Synthetic 5w-30. Super lube is clear – it just turned the paper black. KGW has a slight red hue and then the others are different yellows. The CLP soaked in the fastest by the way reflecting how thin it is.

Did Some Digging

I visited their website and also did some searching. KGW is a new firm so there really isn’t much info out there which meant I needed to reach out to Kohl Oettle, the owner of KGW who developed the oil. Scott had his contact info so we traded some emails.

Kohl was a tanker in the Marine Corp Reserve for six years and had developed a dislike for CLP as a lubricant – CLP stands for Cleaner Lubricant Protector just in case you didn’t know. Kohl pointed out, “We used CLP on everything, m4, m16, 240, m2, m48 etc, and in every application it burned off and ran off so quickly that I developed a real hate for all types of CLP. I wanted something that was thicker, handled heat better, and just lasted longer. “

That resonated with me because CLP is just way too thin for me. When I have big clunking parts, I need a thicker lubricant such as as oil or a grease to have reliable lubrication especially during break in. I still use CLP as a cleaner once in a while but I haven’t used it as a lubricant for probably 16 years — tt dawned on me that I started working on AKs around 2006 and CLP was just too thin to use as an assembly lube on those rifles so it’s been more like 16 years.

So I asked Kohl what set his oil apart from the tons of other products on the market. He responded, “It’s not trying to do everything. It wasn’t designed to be a cleaner. It’s a damn good oil and protector, without all the cleaners that make so many others thin, and less heat tolerant. I do have a very small amount of carbon deposit reducers in my oil, but just enough help control the carbon buildup and thus make the bolt reciprocate much easier. It’s not nearly enough to be used as a cleaner, and that’s on purpose. “

For the last seven years, Kohl has worked in industrial maintenance working on a variety of machines ranging from food processing to automotive parts manufacturing. As part of this, he learned that one of the most effective means of keeping a machine running reliably was to use the proper oil and grease.

What I found especially interesting was that Kohl tinkered with the the blend until he achieved the viscosity and lubrication he wanted through trial and error. He primarily had the AR-15 and similar rifles in mind when he was designing it but it will work on other pistols, rifles and shotguns as well. By the way, I mentioned earlier I thought it was about 30 weight – Kohl told me it’s a tad thicker than that.

When he was ready, he took to shooting classes and and shot thousands of rounds through a variety of weapons. He also sent out samples to people and a local gun store helped him sell his oil and collect feedback for 18 months. He took this feedback and further refined his product.

I respected what he did. Both Scott and I started our respective businesses and learned over time the same way Kohl has done.

Assembly Lube Testing

I used the KGW Enhanced Reliability Oil as an assembly lube for the fire control group, bolt catch, bolt, and bolt carrier. I grease the takedown pins so not there.
I ensured there was a thin film on both the top/front of the hammer as well as the bolt carrier.

My testing has been limited so far but I will update this post after my first range trip. I recently built two AR rifles and used Kohl’s oil as an assembly lube. I could tell everything was moving very easily. In this regard it worked great. Time is a challenge these days and I hope to get these rifles to the range in the next 3-4 weeks but didn’t want to hold up getting the word out there.

You can buy the oil direct from KGW’s website or you may find it at your local gun store as their business expands.

By the way, I don’t make any money off this post and Kohl didn’t ask me to. I just know what it’s like to be an entrepreneur trying to start a small business – I figured helping Kohl was the least I could do after all the folks who helped me.


Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.

If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at [email protected]. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.


Firearms Lube Tip – Use Mobil 1 Synthetic 5W-30 Oil and The Right Dispenser

I’ve been experimenting with different lubricants for a year now because a lot of the firearm “oils” are 99% marketing and 1% oil at a premium price.  You’ll notice that how to lube a firearm is a religious argument for many and I’m not going to get into that.

After doing a lot of digging, I bought two different types of automatic transmission fluid (ATF) (Dexron III and ATF+4) and Mobile 1 Full Synthetic 5W-30 engine oil.  I then loaded up a bunch of squeeze bottles that have needle dispensers on them, labeled each and proceeded to try them out.

Here’s the big secret – they all work.  Of the three, I like the Mobil 1 mainly because it doesn’t have a red color or the smell of transmission fluid.

I’ve now used it to lubricate my AKs, RPK, Uzi, POF-5/MP5 and PTR PDW and am very happy with the results.  It works just fine and a quart will last you forever.

I still prefer Tetra Grease where sliding parts are involved.  As the old saying goes, “if it rotates then oil it.  If it slides, then grease it” has always worked for me though I do admit to reading armorer manuals to see their recommended lube points.

[amazonjs asin=”B0014VVNZU” locale=”US” title=”Tetra Gun 004B1I Gun Grease 1-Ounce Blister”]

The Right Dispensers Make a Huge Difference!

Regardless of the oil you use, having the right dispenser really helps.  Growing up, we used engine oil out of the tried and true cans with the finger squeeze pumps.  I really don’t use that type of dispenser on firearms but do when I work on cars and what not where a large volume is needed.

With firearms, you’ll notice that you often need to get the right lube to the right place.  In the shop, I use the squeeze bottles.  The dispenser pens are something I take in the field as they don’t leak and will not make a huge mess if crushed — let me assure you the bottles will do just that so that is why they stay in the shop.

You can get both of these dispensers very easily off Amazon.  Be sure to read reviews as some brands leak and others don’t.  The ones I am listing next are what I currently use.  I use the 25 gauge needle especially for reaching down into fire control groups and lubricating pins and their attached parts such as triggers, hammers, selectors, etc.


Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.

If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at [email protected]. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.