Oil filters... Im using fram i hear bad things
#91
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Year: 1995
Model: Cherokee
Engine: 4.0 I6
I dont think he stated that the filter capacity has anything to do with that interval. he clearly said "if you're using a quality oil"
and 3000 miles is a myth, most oil change intervals now are closer to 5,000, I have even seen a 7500 oil change interval, and I have heard of some going even to 15,000 miles.
most people just have the 3000 miles ingrained in their minds as a nod back to the days of adjusting your points
and 3000 miles is a myth, most oil change intervals now are closer to 5,000, I have even seen a 7500 oil change interval, and I have heard of some going even to 15,000 miles.
most people just have the 3000 miles ingrained in their minds as a nod back to the days of adjusting your points
#92
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Year: 2k
Model: Cherokee
Engine: 4.0
Wouldn't it be the same? New or old? Metal to metal friction is the same isn't it? So using a newer, better quality oil is the same in both a "new" engine and our older 4.0?
#95
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Year: 2k
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Engine: 4.0
Originally Posted by Diesel
Not really, take a look at what metal and properties are in our jeeps engines, now take a look at a 2011 accord.
#96
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Year: 1991
Engine: 4.0 I-6 H.O.
If it all depends on driving habits, how can we hold to the 3/3?
I again point back to my original assertion.
I would tend to agree with you, its just my opinion, but I do not think that since the time that the 4.0 was designed, the material properties of bearings have changed very much or dramatically improved
#99
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engine construction does have some impact on OCI and oil type, but not much. Your OCI should always be determined by your personal driving style and the environmental conditions.
The 3000 mile oil change is the brainchild of Jiffy Lube in the 1970s. It was primarily not for oil change purposes, but more for the idea that the average Joe doesn't know a thing about how their vehicle operates, and a 3000 mile checkup is a good idea to keep everything in working order (also figure that the person would likely stretch this to 4000-5000 miles on average). The typical auto maintenance schedule lists items in 5k increments usually, which agrees with this checkup philosophy (even though the quick lube practice also made more money off the oil changes).
Now, newer cars tend to have improved emission controls that produce cleaner running engines and don’t contaminate the oil as quickly - thus the trend of increasing manufacturer recommended OCIs. The same holds true for well-maintained cars; an old air or fuel filter and worn-out spark plugs will create more contaminants that can make the oil dirty and abrasive. Severe driving conditions also increase the contaminants.
Basically, it's up to you as the driver to evaluate your OCI for your personal goals (engine longevity perhaps) and driving conditions/style
The 3000 mile oil change is the brainchild of Jiffy Lube in the 1970s. It was primarily not for oil change purposes, but more for the idea that the average Joe doesn't know a thing about how their vehicle operates, and a 3000 mile checkup is a good idea to keep everything in working order (also figure that the person would likely stretch this to 4000-5000 miles on average). The typical auto maintenance schedule lists items in 5k increments usually, which agrees with this checkup philosophy (even though the quick lube practice also made more money off the oil changes).
Now, newer cars tend to have improved emission controls that produce cleaner running engines and don’t contaminate the oil as quickly - thus the trend of increasing manufacturer recommended OCIs. The same holds true for well-maintained cars; an old air or fuel filter and worn-out spark plugs will create more contaminants that can make the oil dirty and abrasive. Severe driving conditions also increase the contaminants.
Basically, it's up to you as the driver to evaluate your OCI for your personal goals (engine longevity perhaps) and driving conditions/style
#100
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Year: 1995
Model: Cherokee
Engine: 4.0L
Ok, for the average public, if someone didn't hammer them for the 3/3 or something close the would over go on the OCI's, I promise. I run my own repair shop, and people will go 10K (or more) without some kind of reminder, also, during this time they won't check the tire pressures or anything else related to maintaining the car. The main reason for the 3/3 is to get the car in the shop on a reg basis and make sure everything is ok. Now I am in the middle of a city where some people never travel more than a block at a time, that is torturous to engines, no matter the type. As far as me "recommending" a OCI, I'd say start at the good or 3/3, and do UOA's until you know how far you can go for your driving conditions.
#101
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Year: 2k
Model: Cherokee
Engine: 4.0
What's the big problem??? Most everyone here claims their rigs leak oil and need to add every so often. Just throw in a new filter every now and then and call it a day.
Don't hate me...I thought it was funny.
Don't hate me...I thought it was funny.
#102
Ok, so now that we have elaborated on oil filter... how about oil? my 192K Renix is getting new sensors, seals, and fluids ALL the way around. Im thinking of going to a full synthetic, maybe Mobil1. If not permanantly, but at least to do a good few hundred miles on a synth to flush the motor...
Im all ears!
Im all ears!
#103
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Year: 2001
Model: Cherokee
Engine: 4.0
Ok, so now that we have elaborated on oil filter... how about oil? my 192K Renix is getting new sensors, seals, and fluids ALL the way around. Im thinking of going to a full synthetic, maybe Mobil1. If not permanantly, but at least to do a good few hundred miles on a synth to flush the motor...
Im all ears!
Im all ears!
#105
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Year: 1995
Model: Cherokee
Engine: 4.0 I6
so how does that make it true?
If it all depends on driving habits, how can we hold to the 3/3?
I again point back to my original assertion.
I would tend to agree with you, its just my opinion, but I do not think that since the time that the 4.0 was designed, the material properties of bearings have changed very much or dramatically improved
If it all depends on driving habits, how can we hold to the 3/3?
I again point back to my original assertion.
I would tend to agree with you, its just my opinion, but I do not think that since the time that the 4.0 was designed, the material properties of bearings have changed very much or dramatically improved