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My next oil change will happen this Fall. Costco 5-30 full synthetic oil ($71 for 20 quarts, delivered).
Membership NOT required!


5W-30. Good choice.

Many consumers don't trust the Manufacturers' oil change interval, and go shorter, even if they use synthetic, so why do they trust 5W-20 oil, out of a barrel, when 5W-30 is also acceptable plus more robust (think engine longevity).
 
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I worked part time at a truck dealership and the chase vehicle was usually an 8-10 year old minivan. They changed oil maybe twice a year with conventional motor oil and drove those vehicles over 300,000 miles.
My conclusion is that if you like using premium synthetic oil in your car..Enjoy!
 

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I worked part time at a truck dealership and the chase vehicle was usually an 8-10 year old minivan. They changed oil maybe twice a year with conventional motor oil and drove those vehicles over 300,000 miles.
My conclusion is that if you like using premium synthetic oil in your car..Enjoy!
Conventional oil is fading out quickly as if I am correct only 10w is conventional and 5w is a blend.
 

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You read my mind!
I always do 5k for full synthetic, 4k on semi-synthetic, and 3k on conventional.
Except now I only use full synthetic, but I transitioned from conventional to synthetic a few years ago.
Now that I am retired my issue is not mileage but time.
 

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There is Youtube channel called "Project Farm" and he tests everything. He did a big synthetic oil runoff (multiple videos) and as part of that runoff he showed what additives, and the amount, were in each brand of oil. It was pretty informative little video. Worth a watch.
 

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Conventional oil is fading out quickly as if I am correct only 10w is conventional and 5w is a blend.
5W-20/30 Valvoline Daily Protection has a smidgen of synthetic in it, but don't know about other brands. Watch out for the marketing strategy that oil companies use to infer information.

Doesn't seem to help their Pour Point (-36C) very much.
 

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5W-20/30 Valvoline Daily Protection has a smidgen of synthetic in it, but don't know about other brands. Watch out for the marketing strategy that oil companies use to infer information.

Doesn't seem to help their Pour Point (-36C) very much.
That is same pour point as synthetic. I have used this oil on more than one occasion and only reason for Advance Synthetic 5w20 high mileage right now is i got it for 10.00 for 5 qts. Once this stash is up probably in 2 years no telling what oil i will run.
 

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That is same pour point as synthetic. I have used this oil on more than one occasion and only reason for Advance Synthetic 5w20 high mileage right now is i got it for 10.00 for 5 qts. Once this stash is up probably in 2 years no telling what oil i will run.
Yes, I use the Valvoline Daily Protection for my 2016 DGC, pick it up when on sale at Walmart. I like Valvoline.
 

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Ha, I've a pal who utters the name 'Valvoline" with the feel of an incantation.

6-7,000 miles has consistently left my vehicles some reserve oil life (syn. or conv.)
RockAuto's $11 kits are what I used for data.

I'll never play the 20,000 mile OCI game because costs for analysis along the way would be too high.
What happens to my super oil when, at 15,000 miles, I resume city driving? 18,000 when Winter sets in?
Up with with conserving resources but our "engine rinse water" is recycled . Wash with clean water, no?
Ridding an engine of smelly, revolting, schmutzy, blackened lube is prudent in my opinion.
You're circulating saturated, aging dirt in your super oil for over 20K ?
 

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I'll never play the 20,000 mile OCI game because costs for analysis along the way would be too high.
What happens to my super oil when, at 15,000 miles, I resume city driving? 18,000 when Winter sets in?

Up with with conserving resources but our "engine rinse water" is recycled . Wash with clean water, no?
Ridding an engine of smelly, revolting, schmutzy, blackened lube is prudent in my opinion.
You're circulating saturated, aging dirt in your super oil for over 20K ?
I don't buy the 20,000 miles oil to save money, as a matter of fact I change it between 3,000 and 5,000 miles.

I buy it for peace of mind.

People might see it as a waste of money, not me, I use it because I can't afford an engine break down on not so friendly territory.
 

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"peace of mind" might result if you, just once, did a used oil analysis. Modern oils can easily last 5-10,000 miles and provide more protection than brand new oils from the 1960's. Do you change spark plugs every 10k like we used to do?

I spent years on a Ford Truck forum when I had my E150, and there was a guy who ran a small fleet of Ford E vans; he had 4 vans over 1.3 million miles (on EACH van) at one time (with 5.4 or 4.6 engines which have long cam chains and plastic tensioners like the Pentastar), never had been inside the engines. He had his drivers try to get oil changed every 10k miles but admitted that sometimes they didn't get around to it until 20k miles. Used a mechanic down the street to change oil and didn't even know what brand they were using. (And he showed some photos of spark plugs that he ran out to 300k miles...and still ran the engines without problems.)

It's not motor oil that will cause your car to break down in a bad neighborhood; it is a bad tire, a dead battery, a broken suspension part, an electrical or fuel system problem, or an accident. I live in the Detroit area and my wife and I both worked in the city, with my wife working late hours at a TV station. I always made sure she had good tires, changed out her batteries after 5-6 years as a pre-emptive move, etc.
 
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"peace of mind" might result if you, just once, did a used oil analysis. Modern oils can easily last 5-10,000 miles and provide more protection than brand new oils from the 1960's. Do you change spark plugs every 10k like we used to do?

It's not motor oil that will cause your car to break down in a bad neighborhood; it is a bad tire, a dead battery, a broken suspension part, an electrical or fuel system problem, or an accident. I live in the Detroit area and my wife and I both worked in the city, with my wife working late hours at a TV station. I always made sure she had good tires, changed out her batteries after 5-6 years as a pre-emptive move, etc.
You are 100% wrong.

First, I use 20,000 miles oil, but change it every 3-4 K miles, why? Because I can.

Your oil analysis is worthless for the average person, other than bragging on forums, it is completely worthless. If I want an oil analysis, then I go straight to the source.

A bad battery will not let me stranded on a not so friendly "territory". I never mentioned a bad neighborhood.

A bad suspension part will not let me stranded either.

I now change tires at least every six months regarding the thread wear. I also change windshield at least twice a year.

Detroit area is very safe compared to the places I drive.

I never, ever change battery as preventive measure, that's just a waste of resources.

That guy who supposedly ran millions of miles on each vehicle can't compare to my needs.

Now, I can change oil as often as I want, it is my money, my safety and thankfully I can.
 

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You can't drive a vehicle after a ball joint separates or a tie rod breaks. You might want to get more familiar with suspension and steering systems.

If I plan to own a car for ~10 years and 150k miles I assume that I will need to replace the battery at least once, so if I change it out at 6 years, I don't see where I am wasting resources over the lifetime of the car.

On that topic, I am very confused about why throwing away good motor oil at 3k miles is not a waste of resources.

And I do not understand what you are saying about "my" oil analysis or "your source". I don't do oil analysis, but if I was spending money changing expensive synthetic oil at 3k miles, it would be interesting to see how that oil looks in a full analysis.

Absolutely do whatever you want with your vans but I think your singular focus on oil is not well founded given the quality of today's motor oils and the quality of modern engine construction and design. Earlier in this thread I posted a link to a Ram Promaster with 626k miles on a Pentastar with 8k mile oil changes.
 

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You can't drive a vehicle after a ball joint separates or a tie rod breaks. You might want to get more familiar with suspension and steering systems.

If I plan to own a car for ~10 years and 150k miles I assume that I will need to replace the battery at least once, so if I change it out at 6 years, I don't see where I am wasting resources over the lifetime of the car.

On that topic, I am very confused about why throwing away good motor oil at 3k miles is not a waste of resources.

And I do not understand what you are saying about "my" oil analysis or "your source". I don't do oil analysis, but if I was spending money changing expensive synthetic oil at 3k miles, it would be interesting to see how that oil looks in a full analysis.

Absolutely do whatever you want with your vans but I think your singular focus on oil is not well founded given the quality of today's motor oils and the quality of modern engine construction and design. Earlier in this thread I posted a link to a Ram Promaster with 626k miles on a Pentastar with 8k mile oil changes.
Others might undersrand my point.

I will never get a broken tie rod much less a ball joint. My vehicles are all well maintained (including not changing ATF, ever).

Oil analysis is worthless unless you do it at least once between every oil change.

150,000 miles is the equivalent to one year to me, not 10 years.

I'm not throwing away good oil, I'm using it.

I recently installed a whole house (and then more) water purification system (around $40,000.00 USD system). It uses two-three gallons of water per each gallon of purified water it produces.

Some say it is a lot of wasted water. Is not wasted water, it is "used" water.

Same with my oil, I use six quarts of oil every month or so to keep my engine in top condition.
 

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You are 100% wrong.

First, I use 20,000 miles oil, but change it every 3-4 K miles, why? Because I can.

There's more to it than that. What's so magic about 3-4K when your oil is good for 5K, 10K, 15K, even 20K. A new filter with every oil change, a new oil plug, a new torque wrench??? :)
 

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There's more to it than that. What's so magic about 3-4K when your oil is good for 5K, 10K, 15K, even 20K. A new filter with every oil change, a new oil plug, a new torque wrench??? :)
Contaminants keeps piling up, the longer the oil stays in the crankcase, the more contaminants diluted in the oil.

Yes, new oil filter with each oil change.

Not too long ago you posted (think it was you) a copy of an owner's manual, read it. It calls for new filter at each oil change, not at every other oil change as you usually do. 😁

Yes, oil plug had to replaced not too long ago.

I rarely use a torque wrench.

Something interesting about oil:

Oil manufacturer might claim oil is good for 10-20,000 miles, but they always recommend to follow vehicle's manufacturer recommendations regarding oil change intervals 🤔
 

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Contaminants keeps piling up, the longer the oil stays in the crankcase, the more contaminants diluted in the oil.

Yes, new oil filter with each oil change.

Not too long ago you posted (think it was you) a copy of an owner's manual, read it. It calls for new filter at each oil change, not at every other oil change as you usually do. 😁

Yes, oil plug had to replaced not too long ago.

I rarely use a torque wrench.

Something interesting about oil:

Oil manufacturer might claim oil is good for 10-20,000 miles, but they always recommend to follow vehicle's manufacturer recommendations regarding oil change intervals 🤔
I conclude you are OC about oil changes. :)

Why waste a good oil filter, I'm not talking about the lower standard 95% efficiency Mopar filters.

No torque wrench on the filter cap? Oooops.

Oil companies like to string one along with their garbage and hype. The real truth is not on their lips sometimes. There was a time when Mobil said that once the warranty was up, go to high mileage oil, and in particular 10W-30 oil, which is what they were using for high mileage oil. They wouldn't dare, double dare or triple dare say that publically anymore, although it would likely be good advice.
 

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I called out ExxonMobil on there 20k oil through an email. I asked if I put it in my van would they warranty any oil related issues. Their comment was only if manufacturer recommended specs were on oil and intervals was in manual. In other words no (they will stand behind 20k oil changes). Oil might have enough additives to make it but my driving is different than most.
 

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I called out ExxonMobil on there 20k oil through an email. I asked if I put it in my van would they warranty any oil related issues. Their comment was only if manufacturer recommended specs were on oil and intervals was in manual. In other words no (they will stand behind 20k oil changes). Oil might have enough additives to make it but my driving is different than most.
You don't need to call Mobil, everything is in black and white:

Protects for up to 20,000 miles between oil changes*

Mobil 1 Extended Performance 5W-30 advanced full synthetic motor oil is designed to deliver outstanding engine protection and protect critical engine parts for up to 20,000 miles between oil changes.*

Nothing outperforms Mobil 1 in overall performance, a motor oil which comes as standard equipment in many different vehicle models, including select high-performance vehicles.
Mobil 1™ Extended Performance Motor Oil Limited 20,000-Mile or One-Year Warranty
What the Warranty Covers
ExxonMobil Fuels and Lubricants Company, a division of Exxon Mobil Corporation (“ExxonMobil”), provides this limited warranty to the purchasers who use Mobil 1 Extended Performance lubricant in their vehicles. This limited warranty covers the lubricant and critical engine parts lubricated by the lubricant. ExxonMobil warrants its lubricants to be free from defects and that the lubricant you purchased will protect your vehicle’s critical engine parts from oil-related failure.
Be advised that if your vehicle is covered by a warranty, you should follow the vehicle’s oil life sensor or the oil change interval recommended in your owner’s manual to avoid a disruption in your vehicle warranty. Follow your owner’s manual if the vehicle is operated in any of the following severe services: racing or commercial applications including taxis, limousines, etc.; frequent towing or hauling; extremely dusty or dirty conditions; or under excessive idling conditions.
What the Warranty Does Not Cover
This Limited Warranty excludes:
  • Mobil lubricants used in mechanically deficient equipment as a result of abnormal operation; negligence; abuse; damage from casualty, shipment or accident; or equipment modification done without written authorization from the original equipment manufacturer (“OEM”).
  • Situations where the OEM-required lubricant standards do not match those stated by ExxonMobil without written approval from ExxonMobil.
  • Mobil lubricants that have been used in conjunction with any other product or additive that has not been authorized for use by ExxonMobil.
  • Failure of equipment due to a pre-existing condition that is unrelated to the use of Mobil lubricants.
  • Repair or replacement of equipment due to normal wear.
What the period of coverage is
The Mobil 1 Extended Performance limited warranty is valid for 20,000 miles or your vehicle’s OEM recommended oil change interval, whichever is longer.

Additional requirements for Mobil 1 Extended Performance include: 1) Oils must be put in service not later than five (5) years from the date of purchase; and 2) an oil change must be completed every twelve (12) months.
What we will do to correct problems
ExxonMobil will replace any lubricant that is defective. In addition, if there is equipment failure due to the lubricant you purchased, and the engine was serviceable at the time the oil was installed, ExxonMobil will repair any equipment damage directly caused by a defect or malfunction of the lubricant, at no cost to you, provided that the lubricant was selected and maintained in accordance with specifications of the OEM or the written instructions (which includes product packaging) of ExxonMobil.

 
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