[QUOTE=Switz of America;4192291][QUOTE][/QUOTE



For what it's worth, according to my mechanic oil life indicators are based entirely on miles driven since last oil change (or resetting of the oil life indicator) and has nothing to do with the quality of the oil. He said most are set at 7500 miles. If you changed yours at 6300 and it still had 15% left, try this math. 15% of 7500 miles is 1125 miles. So add that to your 6300 (even?) miles at oil change and you get 7425. I did the same math with one of my old vehicles after he told about that and got the same results. That's why I change my oil every 3000 miles.

 

Unless the service schedule calls for more frequent changes, I change at 3k, 6k, 10k, and every 5k after that.

It's absolute overkill.

But it satisfies my OCD.

And it's a reason to spend a few minutes on the Jeep, along with doing all the regular safety checks and checking tire pressure, other fluids, etc.

Just remember if you're doing those extended oil changes, you still need to check the oil level every so often.

 

Called my dealership because of 10K service on the phone APP. They said "absolutely" not. They use standard oil and recommend every 3K.

 

Of course they do. They also recommend you pay them to change the oil. As often as possible.

10K OCI is perfectly acceptable for modern engines using synthetic oil. Heck I ran 10K OCI in my '72 240Z once I switched to Mobil1, that was 20+ years ago. I have been doing this with all of my cars for a long time, most of these have been high-revving sports cars. Only variable is our Honda Pilot, I followed the indicator light schedule which was about 7-8K, and our Lexus, they tell us to go every other indicator schedule since we use synthetic (dealer servicing, CPO car with 100K warranty), which turns out to be well over 10K. When we shopped for a new Mini Cooper they told us the first oil change wasn't due until 25K miles (!). And that's with a turbo! I bought my Miata brand new and changed the oil annually (about 10-12K) until it had about 135K and I pulled the motor to swap the block, you could still see the original crosshatch marks on the bores and the engine internals were in absolutely perfect condition. That's with 135K of extremely hard miles on it for a road car.

Welcome to the 21st Century. Modern (synthetic) oil lasts a long time. Modern filters are very good. Modern engines are good at getting the oil where it needs to be.

FYI when I got my Jeep new I changed the oil at about 1600 miles, then again at 5K. I'll change it again at 10K and then 10K intervals from there on out. First oil change I used Mobil1 since I've been using it for decades with nothing but perfect results, but everyone raves about the new Pennzoil Platinum so I used that for the 5K change. It'll be one or the other for the lifetime of the Jeep.

 

The issue is not the oil but your filter. What company makes a 10K oil filter. The molar one last only around 5K. Oil gets contanimated with soot and gunk from the rest of the engine.

Ed

 

remind me to never buy a jeep from you......

 

Many dealerships are lying scumbags. Every 3k is absolutely not needed. The bastards at my dealer told me I would void the warranty if I didn't do it every 3k. They also told me I would void if I used synthetic. Pathetic lying scum. They also told me my fluids were filthy when I took it in for a recall. Little did they know I had change ALL fluids only the week before. I hate them. Your experience may vary.

 

You should take one for the team and never change your oil again and see how many miles you get out of your motor lol. I agree that 10k miles is fine for changes, but seriously 200k? I doubt you would see 50k before the engine seized. And yes, there are motor failures all the time due to oil not being changed.

 

My best friend just got his entire power train warranty voided on a 2014 with 18k miles for having two scrapes on his tie rod. You can clearly see where person adjusting his drag link at the alignment shop must have scraped the bolts on the adjuster sleeve on it. But to them, it was a track bar meeting the frame, then it was spray paint on his rear wheel wells, then it was his smittybilt fenders, along with a million other things that I proved wrong. Absolutely disgusting. Here's the pic I took when it was up on their rack.

 

It's not a Jeep but I one owned a late-80s Mazda 626 that didn't have a single oil change between about 120K miles and over 200K when I sold it. I did add oil from time to time due to it leaking or burning it. This was in the 90s, probably had a Fram filter on it all that time. The thing that finally killed it was an electronic ignition module and me being sick of looking at it. I only paid $250 for the car, it was just supposed to get me by for a few months until I could get my other car sorted out, and I wound up driving it to work every day for about two years. Just wasn't worth it to me to change the oil.

Now I'd like to see some example of an engine failure due to not changing the oil. I a concede that never checking the oil, letting it run low our out of oil, that kills an engine, and invariably you top it up when you change it. Possibly after a long enough time the filter would get clogged or part of the filter element would rip and wind up lodged in a passageway or in the oil pump. And certainly there is an actual real mileage limit whereby the oil would completely lose its ability to lubricate properly, but that's way, way more than 10K miles. Probably closer to 100K miles. And it would depend greatly on the conditions under which the engine was run.