is 0W-20 really the right oil ?

[Hootbro]

Three vehicles with the current 3.6? 2 grand Cherokees before this?

2018 JL
2020 JT
2021 JT

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[IanNubbit]

2018 JL
2020 JT
2021 JT

Oh okay, never think that people go though so many vehciles my bad lol

 

[Hootbro]

Oh okay, never think that people go though so many vehciles my bad lol

Yeah, I generally do not hold on to anything more than a couple of years even though I tell myself on every vehicle purchase I am going to keep until the wheels fall off. I get distracted wanting the next new thing.

 

[mx5red]

Manufacturers ABSOLUTELY design things with a limited lifespan. Planned obsolescence.
Every single part in an automobile is planned and manufactured with economics in mind. They design parts and fasteners and motors to only be as durable as they need to be, not more.
Unless you’re Porsche ?

Tool companies are becoming good at this. Watch some tool tear down videos like what AvE does; newer tools definitely are made more cheaply.

 

[IanNubbit]

Manufacturers ABSOLUTELY design things with a limited lifespan. Planned obsolescence.
Every single part in an automobile is planned and manufactured with economics in mind. They design parts and fasteners and motors to only be as durable as they need to be, not more.
Unless you’re Porsche ?

Tool companies are becoming good at this. Watch some tool tear down videos like what AvE does; newer tools definitely are made more cheaply.

In the US at least this was pushed to a point during the depression that many companies had to resort to planned obsolescence for companies to survive. Never really died since and it makes perfect sense why it’s that way and basically impossible to completely remove it

 

[Marlinvx]

2018 JL
2020 JT
2021 JT

You sound like me:
2017 JKURR
2020 JT
2022 JT ED on the way.

My wife:
2017 Ford Flex Limited
2021 Bronco Sport Badlands
2022 Audi Q3 S-line (hated the Bronco Sport seats. Ford puts those tiny seats in every vehicle until you get to the explorer platform, even the Lincolns and Jaguars have the same tiny seats.)

My 17 yr old:
2020 Mitsubishi Mirage
2021 Subaru Crosstrek Sport

We kept making money selling our other cars. My son made $5K on that little mirage. I sold both my Jeeps for what I paid for them new. We made a few thousand on the Bronco Sport...such a weird time for the used car market.

 

[Hootbro]

You sound like me:
2017 JKURR
2020 JT
2022 JT ED on the way.

My wife:
2017 Ford Flex Limited
2021 Bronco Sport Badlands
2022 Audi Q3 S-line (hated the Bronco Sport seats. Ford puts those tiny seats in every vehicle until you get to the explorer platform, even the Lincolns and Jaguars have the same tiny seats.)

My 17 yr old:
2020 Mitsubishi Mirage
2021 Subaru Crosstrek Sport

We kept making money selling our other cars. My son made $5K on that little mirage. I sold both my Jeeps for what I paid for them new. We made a few thousand on the Bronco Sport...such a weird time for the used car market.

I keep my vehicles generally paid off so I do not kite any negative equity into the next one. If I have bank note on the next one, it is usually paid off within 6 months.

Until the recent market shenanigans, I maybe loss a couple thousand trading in early but chalked that up as the cost of having what I want when I want. I have the liquidity to afford this and is not sound financial advice for most with less means.

 

[Klutch]

There's nothing wrong with running 0W-20 oil in an engine designed for 0W-20 oil. Over the decades of being a car guy, I have heard many myths and misconceptions:

Myth: The heavier the oil, the better!
Reality: Heavy oil is not better oil. Heavy oil is appropriate in an engine with loose tolerances or which is worn out.

Myth: What's best for the race track is best for my street vehicle!
Reality: Race tracks and street driving are very different. Very little is appropriate for both

Myth: Change your oil at least every 3,000 miles!
Reality: The 3,000 mile oil change comes from the 1950s when oil was not nearly as resilient and engines didn't run nearly as cleanly as they now run. It won't hurt your engine to change the oil every 3,000 miles, but it will hurt your wallet and the environment.

Myth: The cooler an engine runs, the better! First thing I do to my vehicles is take out the damn thermostat and throw it away!
Reality: Optimal temperature for a gasoline engine is around 200 degrees. Most factory thermostats are 190 or 195 for this reason. Yet, when replacing a thermostat, people insist that's too hot. They opt or a 180 or even a 160. Or they remove the thermostat completely. Running an engine below 200 degrees causes it to wear faster, causes oil sludge, causes rust, reduces MPGs and can even reduce performance. Oh, and good golly, is it a bad idea to remove a thermostat! Not only will it make the heater pretty much useless in the winter, it's a sure fire way to trash your engine. I used to see low-mileage cars and trucks puking blue smoke and dragging exhaust systems when I lived in Oklahoma. Why? Because the owners removed the thermostat.

And if you think manufacturers are not concerned about reliability and longevity, I can refute that argument in one word: Toyota. The Toyota brand is mega-popular mostly because is has a reputation for longevity and reliability. Yeah, they've produced a few turds on treads over the years, but most Toyotas go almost forever.

 

[DanW]

Just as an example…
I have a 2006 Ford V10 with over 120k hard miles on it, and it uses 0w-20 oil. With regular changes, it still runs beautifully.

Kevin

I've got a 2008 Wrangler with a 3.8. It has 172,000 trouble free miles on it on mostly 5w20. I've been running 0w20 in it the last few oil changes. Runs like new.

 

[NachoRuby]

I've got a 2008 Wrangler with a 3.8. It has 172,000 trouble free miles on it on mostly 5w20. I've been running 0w20 in it the last few oil changes. Runs like new.

Only at 87,000 on the JKU on 5W20, but it's still smooth. Doesn't burn a drop.

 

[Kevin_D]

Myth: Change your oil at least every 3,000 miles!
Reality: The 3,000 mile oil change comes from the 1950s when oil was not nearly as resilient and engines didn't run nearly as cleanly as they now run. It won't hurt your engine to change the oil every 3,000 miles, but it will hurt your wallet and the environment.

This is one of my pet peeves.
If the company that made it says 10k changes, even with dino oil, is sufficient, then me running full synthetic & new filters every 10k should be just fine. Also a lot less used oil to dump!

Kevin

 

[dcmdon]

Withou my reading the back and forth I’m sure is happening here. 1.) engineers are smarter then someone who questions oil weight for regular vehicle use.

I agree with this 100%.

But what we don't know is what kinds of design priorities and constraints engineers are given. In other words what are they designing FOR??

Anyone who designs parts for a car has a bunch of priorities to balance.
1) Cost
2) Weight
3) Longevity
4) Performance
5) Fuel efficiency
And a bunch of other things.

Did someone say. Well, we can get an extra 3% better specific fuel consumption if we do X. But it will increase lifter wear rates by 3%.

Is that relevant to most customers? Who knows. What I'm saying is that these questions are decided based on design priorities. Fuel economy has got to be a top priority. Even if other areas that would produce a product that better serves the buyer's needs
have to flex to accommodate it.

 

[jac04]

Withou my reading the back and forth I’m sure is happening here. 1.) engineers are smarter then someone who questions oil weight for regular vehicle use.

But what happens when the person who questions oil weight for regular vehicle use is an Engineer? And what does driving a train have to do with the oil in my engine?

 

[IanNubbit]

But what happens when the person who questions oil weight for regular vehicle use is an Engineer? And what does driving a train have to do with the oil in my engine?

Okay that’s a preatty funny plot twist. But reverse engineering is a whole different attack. Then your basically questioning every decision and testing why they did what they did blah blah. Still funny I didn’t notice that

 

[IanNubbit]

I agree with this 100%.

But what we don't know is what kinds of design priorities and constraints engineers are given. In other words what are they designing FOR??

Anyone who designs parts for a car has a bunch of priorities to balance.
1) Cost
2) Weight
3) Longevity
4) Performance
5) Fuel efficiency
And a bunch of other things.

Did someone say. Well, we can get an extra 3% better specific fuel consumption if we do X. But it will increase lifter wear rates by 3%.

Is that relevant to most customers? Who knows. What I'm saying is that these questions are decided based on design priorities. Fuel economy has got to be a top priority. Even if other areas that would produce a product that better serves the buyer's needs
have to flex to accommodate it.

Very true. But something I always think is that Chrysler still pushes warranty’s like crazy at sale. Like they REALLLYYYYY want you to buy a OEM warranty. So what that tells me is any part that they make on a vehicle days, they want to last at a bare minimum 125-150k miles, diesels closer to 180k with just their basic warranties. No they aren’t making them to last 200k+ Really no one ever has, some companies just got lucky lol. If things start breaking before that warranty mark, they are loosing money, a lot of money

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