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Maximus Gladius

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OP, I also had a look at your chromium, it’s 2ppm. You don’t want to see more than 1ppm. Let’s hope it’s just this break-in period that explains that and that your next one is down to 1ppm.
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Jteakus

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Not really on track with oil analysis but a skilled engine builder told me when I first started driving and doing maintenance that oil is not only a lubricant but a cleaner. When it starts looking dirty, change it. I try to go with mileage on my gas cars but still drop it when it doesn't look clean. The diesels you have to trust the mileage rec's, instantly black.
 

Kevin_D

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At $35 for 5 quarts Mobil 1 AFE and a filter, you're spending .7 of a cent a mile on oil. Going with 7.5k oil changes, you're spending a .47of a cent/mile.

Changing your oil early only costs .23 of a cent per mile. Let's say you keep your truck for 125k miles (longest ESP Mopar offers), that's $287.50 over the course of 125k miles "wasted" on early oil changes. Otherwise known as less than one car payment.

Let's say you're approaching 125k miles on your JT and you're considering trading it in. Any chance the fact that you know you babied it might convince you to keep it for an extra couple of months? Congrats, your "wasted" $287.50 just paid for itself.
Your infinite wisdom is duly noted ....
Meh…
You do you.
Regardless of cost, it’s still wasting oil.

Kevin
 

ZoMojave

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OP, I also had a look at your chromium, it’s 2ppm. You don’t want to see more than 1ppm. Let’s hope it’s just this break-in period that explains that and that your next one is down to 1ppm.
That is why I changed the factory oil at 1,900 miles. Believe me, it did not look like new oil either. I will go every 5K from here with Pennzoil Platinum.

Yup, I'm old school too. ;)
 

smlobx

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That is why I changed the factory oil at 1,900 miles. Believe me, it did not look like new oil either. I will go every 5K from here with Pennzoil Platinum.

Yup, I'm old school too. ;)
Before I retired I built a beautiful custom home for the head of Ethyl Oil’s R&D department. Ethyl Oil makes the additive Package that many oil companies use in manufacturing their motor oil (and transmission fluid as well).
I had ordered my first new Porsche and asked him what I should do to ensure the best longevity of that expensive engine. His response was to always do your first oil change between 1500 and 2000 miles. The reason being that many of the micro contaminants in the engine and particles that result from the engine components mating to each other happen in that time period and you want to remove them before they can cause damage to the cylinder walls etc.

After that first oil change I go to what ever the manufacturers recommends.

I have been doing that since and my oil analysis have always been great.
 
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WoolyKris

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It is very common to have residue metal particles, cleaners, and solvents from the manufacturing/assembly process. First oil change will help with flushing that out, beyond I would honestly stick to the factory schedule, no reason to waste money. I noticed some dealers push for premature oil changes even with synthetic, since most customers are clueless. The whole “I’m old school” mentality on a modern engine… why not adjust the carburetor while you do 4K oil change ?
 

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I'd rather be safe than sorry, nobody actually knows what's ideal, it's all a guessing game, that's why there's an every 5,000-7,500 or 7,500-10,000?
Nobody knows ? A "guessing game" ?

There are many millions of dollars spent on oil reaearch. There are many dollars spent understanding how to (within reason) calculate the likely life of oil that includes many measurement metrics.

And, all of this research and expense has been done by engineers and scientists over the course of decades across may well established companies located around the world.

Trust me. They "know". Gauranteed.

No disrespect intended. And as stated elsewhere, you do whatever you want. And yes oil is cheap insurance. But, the reality is that you are doing it more often than is necessary based on well established and proven science. And you are following the science of 50 years ago and the opinions of geezers.

Not a guessing game by any measure.
 
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Lunentucker

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Y'all keep going back and forth on it all you want.
See my OP.

My primary reason for the 5K change and test was for assessment, to see if I was getting premature or excessive wear that could be associated with the very well-documented roller cam issues on this series of engines. I still can make the engine throw a code anytime I choose to do so simply by flooring it.
It even shook violently once on me at high speed in the leftmost lane of a very busy 8 lane Interstate. That's something that leaves you a bit apprehensive about the "technologically advanced modern engine".

So again, now that I have this last bit of information in hand I will go ahead and schedule my Star Case and see what the modern scientists at local dealership and the Pentastar A-team ? can come up with to alleviate the one last issue on my Jeep.

By the way, my next oil change will be @ 10K and that will be analyzed as well, because nothing about this modern marvel of an engine has instilled me with confidence yet.
 

JET_83

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Nobody knows ? A "guessing game" ?

There are many millions of dollars spent on oil reaearch. There are many dollars spent understanding how to (within reason) calculate the likely life of oil that includes many measurement metrics.

And, all of this research and expense has been done by engineers and scientists over the course of decades across may well established companies located around the world.

Trust me. They "know". Gauranteed.

No disrespect intended. And as stated elsewhere, you do whatever you want. And yes oil is cheap insurance. But, the reality is that you are doing it more often than is necessary based on well established and proven science. And you are following the science of 50 years ago and the opinions of geezers.

Not a guessing game by any measure.
I’ve never heard exact in terms of miles when it comes to Pennzoil full synthetic It’s not exact different oils last longer and are guaranteed longer, Mobil 1 being one, but I never got an exact figure on how long Pennzoil Platinum is good for.
 

MrZappo

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I’ve never heard exact in terms of miles when it comes to Pennzoil full synthetic It’s not exact different oils last longer and are guaranteed longer, Mobil 1 being one, but I never got an exact figure on how long Pennzoil Platinum is good for.
Well, Penzoil Platinum is factory fill for the Jeeps (or was in 2020 as far as I knew) so id guess that the oil life monitor would be or should be a reasonably accurate measure ...

In any event, unless anyone is talking about cheapo non synthetic oil, many high quality synthetics are close to the same ... Or (reasonably so) ... And yes I am aware that Amsoil and Mobil extended life synthetics and other brands last (or are supposed to last longer), mostly due to superior additive packages or more additives etc etc etc ... Yep .. Whatever ... The point is that the numbers both quoted or seen by following the oil life monitor are within "reason" ...

If you are looking for a statement like (at 8498 miles exactly, the oil will be useless), that is not possible as oil life is largely determined by environment, driving conditions, driving style, weather or not you tow frequently, etc etc etc ... So, it is not an exact number ... Oil driven on the interstate all day every day in Canada by a senior citizen running 55 will last way more miles than city driving in Arizona in July by some lunatic with his foot to the floor constantly etc etc ...

I let the oil life monitor do its thing and even with that I change with around 15% to 20% life left for good measure ... And this normally equates to between 6000 and 10000 miles depending on conditions. I do tow a bit though ...

And since this is the internet and my opinion is GOLD (to me) and worth absolutely ZERO to anyone else, let me be so bold to say that Penzoil Platinum is good for exactly 7500 miles ...

Now if you use the ULTRA platinum, all bets are off. That might last 100,000 miles ... Or it might not ... Or ...
 

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JET_83

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Well, Penzoil Platinum is factory fill for the Jeeps (or was in 2020 as far as I knew) so id guess that the oil life monitor would be or should be a reasonably accurate measure ...

In any event, unless anyone is talking about cheapo non synthetic oil, many high quality synthetics are close to the same ... Or (reasonably so) ... And yes I am aware that Amsoil and Mobil extended life synthetics and other brands last (or are supposed to last longer), mostly due to superior additive packages or more additives etc etc etc ... Yep .. Whatever ... The point is that the numbers both quoted or seen by following the oil life monitor are within "reason" ...

If you are looking for a statement like (at 8498 miles exactly, the oil will be useless), that is not possible as oil life is largely determined by environment, driving conditions, driving style, weather or not you tow frequently, etc etc etc ... So, it is not an exact number ... Oil driven on the interstate all day every day in Canada by a senior citizen running 55 will last way more miles than city driving in Arizona in July by some lunatic with his foot to the floor constantly etc etc ...

I let the oil life monitor do its thing and even with that I change with around 15% to 20% life left for good measure ... And this normally equates to between 6000 and 10000 miles depending on conditions. I do tow a bit though ...

And since this is the internet and my opinion is GOLD (to me) and worth absolutely ZERO to anyone else, let me be so bold to say that Penzoil Platinum is good for exactly 7500 miles ...

Now if you use the ULTRA platinum, all bets are off. That might last 100,000 miles ... Or it might not ... Or ...
I’ve only used Pennzoil Platinum in mine since it meets MS-6395 specs, I don’t think Mobil 1 does so I never used it. I wouldn’t feel safe going up to 20,000+ miles between oil changes regardless of them saying it’ll last that long. Lol
 
 







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