1st oil change

[beetlespin]

I do mine when the computer says to do so and use whatever the dealer suggests when they change it. I have done this with my last 4 vehicles which includes 2 Mustang GT's and I have not had any issues.

 

[Scram1500]

What's weird for me, I think my truck ran better with Shell Rotella Gas Truck 5W-20. But since it's hard to find now, I switched to PUP 5W-20, it does seem I get a little more start-up chatter than I did before, but maybe it's a placebo effect?

My oil analysis of both oils is great, so probably just in my mind.

The Rotella gas truck 5w20 was on my list to try but I never run across it online or on the shelf.

 

[frisby5]

page 293 2019 Owner's Manual - can't speak for later years.

ENGINE BREAK-IN RECOMMENDATIONS A long break-in period is not required for the engine and drivetrain (transmission and axle) in your vehicle. Drive moderately during the first 300 miles (500 km). After the initial 60 miles (100 km), speeds up to 50 or 55 mph (80 or 90 km/h) are desirable. While cruising, brief full-throttle acceleration within the limits of local traffic laws contributes to a good break-in. Wide-open throttle acceleration in low gear can be detrimental and should be avoided. The engine oil installed in the engine at the factory is a high-quality energy conserving type lubricant. Oil changes should be consistent with anticipated climate conditions under which vehicle operations will occur. For the recommended viscosity and quality grades, refer to “Fluids And Lubricants” in “Technical Specifications”. CAUTION! Never use Non-Detergent Oil or Straight Mineral Oil in the engine or damage may result.

NOTE: A new engine may consume some oil during its first few thousand miles (kilometers) of operation. This should be considered a normal part of the break-in and not interpreted as a problem. Please check your oil level with the engine oil indicator often during the break in period. Add oil as required

 

[Lungs414]

Check out Pennzoil website for rebates. It used to be a $22 gas (Shell) I think for a 5 Qt purchase. Then I got a $25 gift card back. Not sure what it is now but I think I saw you had to buy 2 now and get $25 back.
Either way check it out.

 

[frisby5]

Im at 600 miles going to change mine at 1500 . 2022 Bighorn 4x4 , i dont know why they changed to 0w-20 i live in Az where it gets real hot ,im not liking the 0w-20 but i dont want to ruin my warranty . My manual only lists the one weight ,usually they have several but not this year.

 

[Scram1500]

I used to think the same thing about 0w20. After doing some specification sheet research they are basically the same oil just better a pour point. Some also have higher operating viscosity than 5w20.

 

[Loudram]

page 293 2019 Owner's Manual - can't speak for later years.

ENGINE BREAK-IN RECOMMENDATIONS A long break-in period is not required for the engine and drivetrain (transmission and axle) in your vehicle. Drive moderately during the first 300 miles (500 km). After the initial 60 miles (100 km), speeds up to 50 or 55 mph (80 or 90 km/h) are desirable. While cruising, brief full-throttle acceleration within the limits of local traffic laws contributes to a good break-in. Wide-open throttle acceleration in low gear can be detrimental and should be avoided. The engine oil installed in the engine at the factory is a high-quality energy conserving type lubricant. Oil changes should be consistent with anticipated climate conditions under which vehicle operations will occur. For the recommended viscosity and quality grades, refer to “Fluids And Lubricants” in “Technical Specifications”. CAUTION! Never use Non-Detergent Oil or Straight Mineral Oil in the engine or damage may result.

NOTE: A new engine may consume some oil during its first few thousand miles (kilometers) of operation. This should be considered a normal part of the break-in and not interpreted as a problem. Please check your oil level with the engine oil indicator often during the break in period. Add oil as required

I meant break in as far as break in oil and a frequent oil change interval. I figured that would be obvious given the topic on hand. Of course there is an engine break in period.

 

[frisby5]

I used to think the same thing about 0w20. After doing some specification sheet research they are basically the same oil just better a pour point. Some also have higher operating viscosity than 5w20.

What brand are you running ? Im looking at the Valvoline Advance full synthetic

 

[Scram1500]

What brand are you running ? Im looking at the Valvoline Advance full synthetic

Pennzoil Ultra Platinum or regular Platinum. Any brand name synthetic these days is hard to beat, they are all very similar

I used Valvoline 15w40 for many years on a 5.9 Cummins, never an issue

 

[RVTRKN]

OK, changed oil today and Advanced Auto had Mopar MO-339 oil filter which seems to fit and is listed in many filter cross references. Unfortunately the dealer used Duramax 5/20 oil with a Car Quest oil filter R84060MP when I had the oil changed for my second to me oil change on a 29K mile truck I bought used. I bought Valvoline Advanced syn 5-20 oil and the Mopar filter. But if you look up on the Mopar web site, none of the numbers are correct.
So what is the latest Mopar part number for an oil filter for the 2020 Bighorn in signature? I know Mopar changes numbers frequently, and my dealer won't give out part numbers unless you purchase from them.

 

[SD Rebel]

OK, changed oil today and Advanced Auto had Mopar MO-339 oil filter which seems to fit and is listed in many filter cross references. Unfortunately the dealer used Duramax 5/20 oil with a Car Quest oil filter R84060MP when I had the oil changed for my second to me oil change on a 29K mile truck I bought used. I bought Valvoline Advanced syn 5-20 oil and the Mopar filter. But if you look up on the Mopar web site, none of the numbers are correct.
So what is the latest Mopar part number for an oil filter for the 2020 Bighorn in signature? I know Mopar changes numbers frequently, and my dealer won't give out part numbers unless you purchase from them.

MO-339 is the correct filter, you can find them at Walmart and most other places with that number. Walmart is the cheapest at about $10, if they have them in stock, I would stock up. Oriellys and Autozone are usually $13-$15 for it.

If the dealer used that filter, it should be fine, you have a record of it in case someone complains about it later. But that is a bargain filter compared to the MO339.

 

[RVTRKN]

Advanced Auto gave me a package deal for oil and filter, which was a good deal. I paid $9.99 for the filter and $51.97 for 7 quarts of Valvoline Advanced Syn oil. (1ea 5qt. and 2ea 1qt)

I didn't like what seemed to be a knock off oil filter from Fram, the associate said they own the brand now, but I don't believe it. So I told him I was going to Auto Zone across the street because they had what I allways used, which is Fram Extra Guard oil filters. When I told him I wanted real Fram oil filters and was going across the street he pointed out the Mopar oil filter, so I bought it and he gave me the bundled price.

Auto Zone has the Fram Extra Guard oil filter PH10060, however Advanced Auto has Fram Drive FD10060 , Fram Force FF10060, and Fram Titanium FS10060. Who is the real filter, please stand up.

On Edit, I guess they are Fram filters. FRAM Oil Filters | Search By Vehicle Manufacturer | FRAM

 

[RVTRKN]

So which Fram oil filter would be the best for 5K mile intervals ?

I've used the Fram Extra Guard oil filters for years and back in the day it was just Fram oil filters. The better the filtration the more restricted the flow, in theory your slowing the flow of oil through the longer change interval filters.

 

[kdoublep]

I currently use Fram Ultra Synthetic and i am about to use it again.

 

[Jmac509]

From the dealership my oil filter was on so tight that it stripped the "hex" socket on the end of the filter using an oil wrench to try to get it off. I had to resort to a set of 36" channel grips to unscrew it. The drain plug was tight enough that when it did loosen it made a "pop" noise when it came off.

It's definitely do able but you should expect a fight when it comes to the filter, you absolutely will not be able to get it off by hand.

Obviously the drain plug is on the bottom of the motor and you can easily get to it with a breaker bar.

 

[2025 Ram Limited]

Nobody else has said it so I will. We all grew up believing and doing oil changes at different intervals but, what if the truck computer is only there to tell WOMEN when to change their oil as a reminder? We know how bad they are at these things.

 

[Cbty2050]

Nobody else has said it so I will. We all grew up believing and doing oil changes at different intervals but, what if the truck computer is only there to tell WOMEN when to change their oil as a reminder? We know how bad they are at these things.

Is this your spin on humor?

 

[rossagge]

Wanted to do mine at 1K mi., but it slipped. Gonna have it done this weekend at 1.5K, then every 3500 mi. That's me trying to save the life on my turbo engines. Otherwise on NA engines, non-high performance, every 5k mi. or 6 mths.

 

[2025 Ram Limited]

Is this your spin on humor?

Admittedly, I do have a dark sense of humor. Touch a nerve?

 

[WXman]

If you plan to keep the truck as long as you possibly can, DO NOT use 0W20. It is a hard working engine in a full size truck. It needs proper viscosity and protection to avoid valvetrain issues. On my first oil change I dumped the factory fill and never ever touched a bottle of 0W20 again. It was shocking how much quieter my engine ran immediately, and ALL of the start-up ticking went away.

3.8M views · 13K reactions | Engine Oil Viscosity Test 😲😲 | Fernandez L. Jayson

Engine Oil Viscosity Test 😲😲.

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