Sponsored

Oil change miles -- how often do you change oil?

djthumper

Well-Known Member
First Name
Larry
Joined
Oct 5, 2021
Threads
1
Messages
532
Reaction score
422
Location
North Las Vegas, NV
Vehicle(s)
21 JT Sport S Eco Diesel, 18 JLU Sport
Occupation
I.T.
I just change my oil when the oil life meter tells me it is time. If I am doing a long trip I may change it if it is close.
Sponsored

 

Volt0

Well-Known Member
First Name
Tim
Joined
Apr 27, 2022
Threads
31
Messages
762
Reaction score
991
Location
MidMo
Vehicle(s)
JTM,JTHA
I change ours between 45% remaining and 30% remaining, and I’m still $$$ ahead compared to paying the dealership to do it, and I don’t have to worry about some careless worker creating an issue. Perhaps more important than ‘when’, is that you do it yourself. rotate the tires yourself. Torque them properly, and get to know your equipment. The $$$ that you save can pay for some tools, and/or bigger repairs/upgrades ( when needed ).
 

smlobx

Well-Known Member
First Name
Eddie
Joined
Jun 28, 2018
Threads
87
Messages
2,653
Reaction score
4,532
Location
Mid Atlantic
Vehicle(s)
JTR, F-350 diesel, Porsche Spyder, Model Y
Occupation
Semi retired consultant
I try and keep my life simple (haha) so I just change it every 5000 miles. Makes it easy to remember.
 

Blade1668

Well-Known Member
First Name
Darrell
Joined
Jan 7, 2020
Threads
12
Messages
3,273
Reaction score
3,161
Location
N. AL.
Vehicle(s)
90XJ, 91XJ, 91MJ, 05 LJ, 20 JT
Build Thread
Link
Vehicle Showcase
1
I pull and send a oil sample in normally when I change the oil and filter. It's normally in the 7000-8500 mile range or so then reset oil life and 2nd trip odometer. Somewhere before oil life monitoring hits 10% left, I'll probably be doing a oil change when I get some good weather, hopefully in next week or two. Especially since I'm averaging a little less than 30,000 miles a year. Towing will drop the oil life monitoring fast.
 

aevgladitorrubi

Well-Known Member
First Name
Dennis
Joined
Jan 9, 2021
Threads
16
Messages
299
Reaction score
224
Location
60190
Vehicle(s)
2021 Jeep Gladiator Rubicon
Occupation
Med Sales
Vehicle Showcase
1
how often does everyone change their miles , I thought synthetic was good for 7k miles ?
I change every 5K-- and rotate tires, fuel filter (diesel), every 10K...
 

Sponsored

Camaroboi13

Well-Known Member
First Name
Justin
Joined
Aug 22, 2022
Threads
13
Messages
1,810
Reaction score
2,903
Location
SoCal
Vehicle(s)
87 XJ Pioneer, 17 WK2 3.6, 18 JLU 3.6, 22 JTOD 3.0
Occupation
LEO - Life in Chino
I go by the oil life indicator. Around 50% is when I think about changing it.

Around 8% is when I actually get around to changing it. That’s generally 8k miles, give or take.
 

MCATDT

Well-Known Member
First Name
Paul
Joined
Oct 20, 2020
Threads
21
Messages
279
Reaction score
457
Location
Orlando, Florida
Vehicle(s)
2020 Gladiator
I really haven't put a lot of thought into this prior to the post....Before oil life monitors I was pretty set on 5k changes. For the TJ with no monitor I stick to that. On all of our vehicles with monitors including the JT I wait for the first warning (I believe its at 10%) and I do the change pretty quickly at that point. Boy, technology has made me lazy :)
 

PuddleJumper

Well-Known Member
First Name
Cortlund
Joined
Jan 17, 2024
Threads
68
Messages
2,540
Reaction score
3,373
Location
Alexandria, Virginia
Vehicle(s)
23' JTM, 22' JTR, 22' F56S,
Build Thread
Link
Occupation
STACK Infrastructure Critical Operations Technician
Vehicle Showcase
1
I go by the oil life indicator. Around 50% is when I think about changing it.

Around 8% is when I actually get around to changing it. That’s generally 8k miles, give or take.
diesel i imagine can run a bit longer. and i would too seeing the cost of Rotella T6. that shit is liquid gold. i always buy it when i see it for my buddy with his 7.3 bronco.
 

PuddleJumper

Well-Known Member
First Name
Cortlund
Joined
Jan 17, 2024
Threads
68
Messages
2,540
Reaction score
3,373
Location
Alexandria, Virginia
Vehicle(s)
23' JTM, 22' JTR, 22' F56S,
Build Thread
Link
Occupation
STACK Infrastructure Critical Operations Technician
Vehicle Showcase
1
So much for those who love to keep the RPM down LOL.
It's not a good thing. Run it, work it.


hell yeah, 7k a day keeps the tick away.
 

Sponsored

GrubbyBaja

Well-Known Member
First Name
Mike
Joined
Nov 12, 2019
Threads
4
Messages
203
Reaction score
297
Location
Titus, AL (Wetumpka)
Vehicle(s)
2020 Sting Gray JTR, 6-speed
Occupation
Electrical Engineer
Driving profile: Rural highway miles, approximately 10,000 miles/yr.
Oil change frequency: 7,500 miles (it's an easy calculation for me).
On-board oil monitor usually indicates ~20+% remaining at oil change.
FWIW, I also perform 5-tire rotation at oil change.
Location: SE Alabama with somewhat moderate temperatures year round.

This is the same oil change profile I used on my Subaru Baja turbo (sold at 140,000 miles) and on my wife's Edge ST 2.7L twin turbo (80,000 miles and climbing). Never had an issue even with the turbos...but I also wasn't boosting all the time.
 
Last edited:

Sweetums

Well-Known Member
Joined
Mar 30, 2023
Threads
28
Messages
2,040
Reaction score
4,404
Location
Utah
Vehicle(s)
'05 LJR, '21 JTDR, '00 VFR800, RSV4, '11 MTS 1200
how often does everyone change their miles , I thought synthetic was good for 7k miles ?
Automakers have been pushing their service intervals because it's a selling point to some people. "Oil changes only every 10,000 miles?! Imagine how much money we will save!" Automakers only care about the car until the end of the warranty period, then it's in their interest for you to buy a new car. That super-long oil change interval is also based on ideal driving: sea level, temperate weather, flat ground, consistent 55-65 mph, no load, no towing, in clean air. If you are doing "harsh driving" then your oil change interval is sooner - yes, even in most owners manuals.

I drive at altitude, up and down mountains, in stop-and-go traffic, while towing/hauling, in dusty conditions, and in temperatures ranging from the ten degrees to 120+ degrees.

5,000 miles is where I change my oil for synthetic. 3,000 for conventional. If I've spent a lot of time off road in the dirt, running 4-low in hot conditions, doing water crossings, etc, then the oil gets changed immediately after the trip regardless of mileage (along with diff oil). Oil is cheap, engines are expensive.

And before anyone starts in on me about the environment, motor oil is re-refined and processed to become... motor oil. How many resources are needed to make a new engine or a new car?
 

ShadowsPapa

Well-Known Member
First Name
Bill
Joined
Oct 12, 2019
Threads
247
Messages
40,476
Reaction score
53,958
Location
Runnells, Iowa
Vehicle(s)
'25 JTMX, '23 JLU 4xe, '82 SX4, '73 Javelin
Occupation
Retired auto mechanic, frmr gov't ntwrk security admin
Vehicle Showcase
3
Towing will drop the oil life monitoring fast.
Yes, it does. Have witnessed that.
I drive at altitude, up and down mountains, in stop-and-go traffic, while towing/hauling, in dusty conditions, and in temperatures ranging from the ten degrees to 120+ degrees.

5,000-6,000 miles is where I change my oil. Oil is cheap, engines are expensive.
Key words right there........ do people think about their driving conditions, or do they assume "it's all normal, everyone does it"?
10K is ideal driving. Always longer drives, always unladen, always up to temp for a period of time, who the heck ever drives like the ideal conditions that 10K is based on? Not me.

If I drove in your conditions, I suspect those would be my max numbers for sure, no doubt.
I am sort of guessing, but then it's based on observations as well, that if you checked your oil life display - it's not sitting at any 50% left, either.

I can't see how it's even remotely possible to argue against your quote I just put here.
 

Sweetums

Well-Known Member
Joined
Mar 30, 2023
Threads
28
Messages
2,040
Reaction score
4,404
Location
Utah
Vehicle(s)
'05 LJR, '21 JTDR, '00 VFR800, RSV4, '11 MTS 1200
The oil life monitor on a lot of cars is just an odometer function with a pre-programmed "countdown" displayed as a percentage. The car isn't actually testing the oil for particulate or viscosity, it's a good idea to send an oil sample out to a lab once in a while to make sure you aren't pushing things too far. I've seen oil that looked dreadful come back from a lab with a report showing excellent health, I've seen oil the color and clarity of honey come back with reports that it's not meeting spec.
 

Hootbro

Well-Known Member
First Name
Don
Joined
Apr 13, 2019
Threads
57
Messages
10,206
Reaction score
20,001
Location
Delaware
Vehicle(s)
2025 Gladiator Sport
The oil life monitor on a lot of cars is just an odometer function with a pre-programmed "countdown" displayed as a percentage. The car isn't actually testing the oil for particulate or viscosity, it's a good idea to send an oil sample out to a lab once in a while to make sure you aren't pushing things too far. I've seen oil that looked dreadful come back from a lab with a report showing excellent health, I've seen oil the color and clarity of honey come back with reports that it's not meeting spec.
OLM on our Jeeps is algorithm based and not just a mileage counter. You are right, it does not analyze the oil directly but takes in other engine parameters for a guesstimate calculation.
Sponsored

 
 







Top