oil change interval

[El_Dude]

Going to change the oil in my 2019 classic 5.7L myself. i already got 7 quarts of full syn oil and a filter. Im reading that this oil can go 10K but I feel like that's way too long. How often should I change it? I live in Houston, Tx and just use it for going to work and back 5 days a week. Right now it has 22K miles.

 

[Zoe Saldana]

What does your manual say?

 

[crash68]

If your running a full synthetic oil, anything less than 7500 miles your wasting your money unless you idle the truck a lot(hours).
An oil analysis will tell you if the oil is good and let you know of any abnormal wear.

 

[Sur5er]

If your oil hasn't been changed in 22k miles, I'd get on it right quick like! 10k is a good rule of thumb with a good synthetic. Ram maxes oil at 15k. I change mine by the odo, so when I hit the 10, 20, 30k etc., mark. Makes it easy to track the other maintenance items, too. Keep in mind that if you do all short trips, it's much harder on the oil and you can develop sludge.

 

[El_Dude]

What does your manual say?

I bought the truck used it didnt come with manual.

 

[crash68]

I bought the truck used it didnt come with manual.

You can download an owner's manual here:
https://www.mopar.com/en-us/my-garage/select-vehicle.html
Owner's manual states to follow the Oil Life Monitor in the truck but not to exceed 12 months regardless of miles.

 

[El_Dude]

If your running a full synthetic oil, anything less than 7500 miles your wasting your money unless you idle the truck a lot(hours).
An oil analysis will tell you if the oil is good and let you know of any abnormal wear.

Thanks man. I remember changing my oil every 3000 miles on my other cars so anything above that seems crazy to me. But then technology has came a long way. Thanks again.

 

[El_Dude]

If your oil hasn't been changed in 22k miles, I'd get on it right quick like! 10k is a good rule of thumb with a good synthetic. Ram maxes oil at 15k. I change mine by the odo, so when I hit the 10, 20, 30k etc., mark. Makes it easy to track the other maintenance items, too. Keep in mind that if you do all short trips, it's much harder on the oil and you can develop sludge.

Hi, haha no I know better than that. I bought this truck with 20K miles and there was a sticker on the windsheild saying the next oil change is due at 22K. I still can't come to grips with oil lasting that long, but then again, i understand very little about how oil breaks down and how it's evolved.

Thank you.

 

[Octane]

Thanks man. I remember changing my oil every 3000 miles on my other cars so anything above that seems crazy to me. But then technology has came a long way. Thanks again.

I change mine every 4k miles.I dont do 5k or more recommended oil changes.Partly because thin oil and extended oil changes started with the enviro wackos wanting it.

 

[Zoe Saldana]

I bought the truck used it didnt come with manual.

https://blog.ramtrucks.com/lifestyle/ram-trucks-owners-manual/index.html

https://carmanuals2.com/ram/1500-2016-owner-s-manual-72778

 

[gypsy400]

Use the oil life meter.. It will vary the oil life based on driving habits.. personally I don't go below 25%, which works out to 6 months based on how I drive. Right now I have 72% left and its been 4536km since I changed my oil.

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[NOV87]

Personally, I wouldn't go past 6k. Oil and filter are not that expensive. And shorter OCI may prevent the dreaded cam/lifter failure.

 

[Richg87]

5K for me.

 

[El_Dude]

Thanks all.

 

[El_Dude]

Personally, I wouldn't go past 6k. Oil and filter are not that expensive. And shorter OCI may prevent the dreaded cam/lifter failure.

Hi. Can you expand on the cam issue? Is it a known problem on the 5.7? Any particular years?

 

[corneileous]

Hi. Can you expand on the cam issue? Is it a known problem on the 5.7? Any particular years?

He’s talking about the dreaded hemi tick that can happen to these engines that’s due to lack of lubrication in the MDS lifters that’s really kind of a ****** engine design that’s been going on for years but when coupled together with very long oil changes, 20w, not so great semi-synthetic or synthetic-blend engine oil and paper oil filter makes that an extreme possibility but, a lot of that can be avoided if you run the best oil you can that’s full synthetic with a really good synthetic media oil filter that’s changed long before that oil life meter on your dash screen tells you to.

I mean to me, the only thing that oil life meter is good for is using the built-in odometer on it to keep track of how many miles I have on my current oil change. But as far as when I change my oil, I try to change it no more than 6500 to 7000 miles but, I don’t run cheap oil, either. Ever since I’ve had my truck brand new, I’ve been running the 5W 20 Pennzoil ultra platinum and I just recently I switched to the Amsoil signature series 5W 20 with one of their premium, 15,000 mile oil filters. I don’t plan on running my oil that many miles, but I want an oil filter that I know will go a long time.


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[kurek]

Hi. Can you expand on the cam issue? Is it a known problem on the 5.7? Any particular years?

The summary is sometimes on 5.7 and 6.4 hemis one or more rollers will stop rolling and instead slide on the cam which ultimately grinds the cam to death and fills the sump with glitter.

Nobody knows how widespread it truly is since FCA/Dodge have made millions of these engines and it could be 0.1% or 0.001% of them or all of them on a long enough time scale.. Anyone's guess

MDS doesn't cause it because not all hemis have MDS and the ones without are still susceptible. Thin oil doesn't cause it because not all hemis specify 5w20 and those which specify thicker oil are still susceptible.

There is a rumor that the underlying fault was corrected around the 2017 model year but nobody outside FCA seems to have any proof of anything related to this failure, its prevalence or prevention or even its fundamental origin.

 

[Neil E]

I changed mine every 6-7500 miles with full synthetic. But if you have 22k miles, and it hasn't been changed, you need to change it quick. I did my first oil change at 3k miles, and then went to the interval I mentioned after that.

 

[corneileous]

The summary is sometimes on 5.7 and 6.4 hemis one or more rollers will stop rolling and instead slide on the cam which ultimately grinds the cam to death and fills the sump with glitter.

Nobody knows how widespread it truly is since FCA/Dodge have made millions of these engines and it could be 0.1% or 0.001% of them or all of them on a long enough time scale.. Anyone's guess

MDS doesn't cause it because not all hemis have MDS and the ones without are still susceptible. Thin oil doesn't cause it because not all hemis specify 5w20 and those which specify thicker oil are still susceptible.

There is a rumor that the underlying fault was corrected around the 2017 model year but nobody outside FCA seems to have any proof of anything related to this failure, its prevalence or prevention or even its fundamental origin.

The MDS might not be the direct cause of it but according to a lot of different sources, including here, the MDS and the switch to 20 weight oil makes it a lot more of a problem. That’s why so many people who don’t have warranty anymore switch to a 30 weight oil that has a lot more of an additive package to help prevent against that.

But yes, what you said happens is correct and it’s due from lack of lubrication and the design of the lifters. Oh, and longer “recommended” oil change intervals with non-synthetic oil and cheap paper oil filters don’t help, either.


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[kurek]

People speculate all sorts of stuff but to date nobody has supplied any sort of proof documenting a connection between MDS or oil viscosity and the failure.