First oil change

[MrZappo]

I’m waiting till the computer tells me to change it. So far 7200 miles and 15% oil life.

She lies !!! (assuming that your PCM identifies as female) (If not, please insert here _____ one of several hundred acceptable pronouns to suit your Jeep and its unique individual identity) Its all part of the conspiracy against all of us ...

Its not like billions of miles of research over several lifetimes have provided enough data that a computer program could be developed to estimate oil life (within reason) given dozens of sensor readings and loads of factual/undisputed data ... No sir ... All those engineers are full of shit. They want to hurt you !!! But imagine a world where we could do things like this .... Its the stuff of dreams ... Maybe sometime in the future ...

Do not be fooled ...

Instead you should follow your grandfathers advice based on different oils and different engines from a bygone era. While your at it why not pull a tooth with nothing but a shot of whiskey and burn a few witches ...

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[ShadowsPapa]

I’m waiting till the computer tells me to change it. So far 7200 miles and 15% oil life.

So it would be telling you time's up at under 9,000 miles.

Either that or neutrinos are going to go through every chip in that truck and knock some electrons off course just for fun.

 

[SargeDiesel]

Mobil 1 meets or exceeds Chrysler MS-6395?

Is there a list of approved oils that meet/exceed specs ? I have a couple cases of Amsoil laying around.

 

[Hootbro]

Is there a list of approved oils that meet/exceed specs ? I have a couple cases of Amsoil laying around.

I have never seen a true master list of current approved MS-6395 oils and if there was one, it would have to come from FCA/Stellantis. I have seen a few self made list on various forums over the years but they go stale pretty quick on what is current and all encompassing.

Best bet is to just check with whatever brand of oil you are looking at and see what that manufacturer has to say on the subject.

I will also add that I have put out at numerous times as a challenge that I will buy first persons next oil change that can show me a provable instance where a warranty was denied for using a non MS-6395 approved oil when both current API ratting and correct weigh grade oil was called out. To this date, it has not happened.

MS-6395 is not a difficult spec to achieve when Valvoline conventional meets it. What makes the spec hard to obtain is that for an oil to get certified for it, the certification is a two year procedural process than a reformulation to meet the spec. Most major oil brands that lagged getting the certification to include AMSOIL have stated their current formulations "meet or exceed" the spec but do not have the actual approval because the length to obtain the certification or just not caring to get it at all.

 

[ShadowsPapa]

What will confuse things is the newer API SP and GF6

On the other hand, oils that meet those may help a few folks out.

 

[SargeDiesel]

What will confuse things is the newer API SP and GF6

On the other hand, oils that meet those may help a few folks out.

I figured I wouldn't have many choices for the Diesel..... whole new process for me.

 

[JET_83]

Is there a list of approved oils that meet/exceed specs ? I have a couple cases of Amsoil laying around.

Pennzoil synthetic is the only one approved by Chrysler standards from what I've seen, I use the platinum

 

[deanmarkley]

I use the same bud, change mine every 4,000 is what I’ve always done regardless, but for people that decide to go 10,000 per oil change there’s a very good chance there’s will start using way more oil than designed, oil isn’t that expensive to save a motor.

I am curious as to what you base "there's a very good chance they will start using way more oil" on? The engineers who designed Jeep engines are competent people. If they weren't, they wouldn't have their jobs.

 

[ShadowsPapa]

I am curious as to what you base "there's a very good chance they will start using way more oil" on? The engineers who designed Jeep engines are competent people. If they weren't, they wouldn't have their jobs.

And the Pentastar is still around because it is long-lived engine. There's plenty of them around with some pretty high mileage on them - 200,000 and more.

It's bunk. It's based on internet reading, I'm guessing. (or one round of bad luck)
I've driven for 51 years, I have owned cars and trucks that long, and most of that time I was also a mechanic.
Yes, 10,000 miles IS under "normal conditions" of heat, cold starts, load, dirt in the air and more, but for someone like my wife, 10,000 isn't a crazy number. She always gets her Jeep fully warmed up, never hauls a trailer or payload and the air around here outside of planting and harvest and Canadian fires and KS dust storms is normally fairly clean. The oil life monitor takes a lot into account and if conditions dictate it will drop that 10,000 miles down accordingly. It knows things the driver does not or would not consider.
10,000 is ideal, no one ever said "all Jeep engines can go 10,000 between changes". I haven't seen anyone even suggest that or hint at it. It's the range under good conditions and I know a lot of people who could do that, many will be looking at something between 7 and 9,000 miles instead.
The book doesn't say "you WILL go" that many miles.
I've had a lot of engines with well over 100,000 miles - none of them uses "way more oil" than was considered normal.

 

[JET_83]

I am curious as to what you base "there's a very good chance they will start using way more oil" on? The engineers who designed Jeep engines are competent people. If they weren't, they wouldn't have their jobs.

lol, the molecules break down after so many miles obviously and then your motor will eventually start using oil because of neglect

 

[ShadowsPapa]

lol, the molecules break down after so many miles obviously and then your motor will eventually start using oil because of neglect

That's funny.
OK, Mr. Wizard, thanks for the in-depth scientific explanation.

check this out -
Heat breaks down oil and causes oxidation - don't get the oil past the start of thermal breakdown and you have long life oil.

Oxidation is the largest issue for breakdown.
The rate at which base oil molecules react with oxygen depends on a number of factors. The most critical is temperature.
The oxidation rates increase exponentially with increasing temperature due to the Arrehenius rate rule. For most mineral oils, a general rule of thumb is that the rate of oxidation doubles for every 10°C (18°F) rise in temperature above 75°C (165°F).
Because of this, synthetic oils are often required in high temperature applications to prevent rapid oil oxidation.
Synthetic hydrocarbon oils (SHCs) are more oxidatively stable than conventional minerals oils.
By carefully controlling the chemical structure of the base oil molecules, synthetic base oil manufacturers can limit the number of reactive hydrogen and carbons atoms, improving the overall oxidative resistance of the base oil.

In English - modern synthetics resist thermal breakdown, resist oxidation and thus have a much longer useful life in an engine.

Synthetic oil also resists the shearing forces - so synthetic oil will go a lot further because of heat tolerance, reducing oxidation, and resists the shearing forces that tears molecules apart.

It's not miles that causes breakdown of oil - it's the conditions in those miles.
Oil technology has changed since the 1990s. You are thinking way back to your grandfather's oil.

 

[JET_83]

That's funny.
OK, Mr. Wizard, thanks for the in-depth scientific explanation.

check this out -
Heat breaks down oil and causes oxidation - don't get the oil past the start of thermal breakdown and you have long life oil.

Oxidation is the largest issue for breakdown.
The rate at which base oil molecules react with oxygen depends on a number of factors. The most critical is temperature.
The oxidation rates increase exponentially with increasing temperature due to the Arrehenius rate rule. For most mineral oils, a general rule of thumb is that the rate of oxidation doubles for every 10°C (18°F) rise in temperature above 75°C (165°F).
Because of this, synthetic oils are often required in high temperature applications to prevent rapid oil oxidation.
Synthetic hydrocarbon oils (SHCs) are more oxidatively stable than conventional minerals oils.
By carefully controlling the chemical structure of the base oil molecules, synthetic base oil manufacturers can limit the number of reactive hydrogen and carbons atoms, improving the overall oxidative resistance of the base oil.

In English - modern synthetics resist thermal breakdown, resist oxidation and thus have a much longer useful life in an engine.

Synthetic oil also resists the shearing forces - so synthetic oil will go a lot further because of heat tolerance, reducing oxidation, and resists the shearing forces that tears molecules apart.

It's not miles that causes breakdown of oil - it's the conditions in those miles.
Oil technology has changed since the 1990s. You are thinking way back to your grandfather's oil.

what's funny is you act like eventually your motor won't burn an excessive amount of oil if it isn't changed within so many intervals.

 

[sharpsicle]

@ShadowsPapa and @deanmarkley, you guys know better.....

He's clearly just posting to rile people up since his posts are full of known false information.

 

[ShadowsPapa]

what's funny is you act like eventually your motor won't burn an excessive amount of oil if it isn't changed within so many intervals.

Ha, you are SO hooked on the "it WILL burn oil!" bit - but can't base it on anything.
You are so hooked on the bit that if everyone goes more than 5,000 miles they WILL burn oil. Where's your proof or evidence? Prove that Jeep is wrong. Prove that Mobile 1 is wrong.

Prove that Ford is wrong ->
Your engine oil should be changed every 5,000-10,000 miles, depending on your vehicle’s model year and driving conditions. Many newer Ford vehicles have an Intelligent Oil-Life Monitor that can help you keep track of when an oil change is needed.

Conditions that could accelerate an oil change interval include towing, short-distance driving and driving in extreme temperatures. For more information, refer to the Scheduled Maintenance section in your Owner's Manual.

(Gee, Ford says some people can go to 10,000 miles)

@ShadowsPapa you know better.....

Yeah, we can show the science, and all a troll can do is keep repeating the same claims with no backing.

 

[JET_83]

Ha, you are SO hooked on the "it WILL burn oil!" bit - but can't base it on anything.
You are so hooked on the bit that if everyone goes more than 5,000 miles they WILL burn oil. Where's your proof or evidence? Prove that Jeep is wrong. Prove that Mobile 1 is wrong.

Prove that Ford is wrong ->
Your engine oil should be changed every 5,000-10,000 miles, depending on your vehicle’s model year and driving conditions. Many newer Ford vehicles have an Intelligent Oil-Life Monitor that can help you keep track of when an oil change is needed.

Conditions that could accelerate an oil change interval include towing, short-distance driving and driving in extreme temperatures. For more information, refer to the Scheduled Maintenance section in your Owner's Manual.

(Gee, Ford says some people can go to 10,000 miles)



Yeah, we can show the science, and all a troll can do is keep repeating the same claims with no backing.

wow, you really are dumb

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