Oil change interval poll - Ford Mustang Forum
View Poll Results: How many miles between oil changes?
3,000 miles 68 10.95%
4,000 miles 60 9.66%
5,000-8,000 miles 361 58.13%
8,000-10,000 miles 44 7.09%
When the OLM tells me to or 10,000 miles 88 14.17%
Voters: 621. You may not vote on this poll

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post #1 of 280 (permalink) Old 10-02-2011 Thread Starter
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Oil change interval poll

Hey guys,

I have 9,680 miles on my car at the moment, and will be doing my first oil change at 10,000 miles in a few short days. My OLM says the oil life is still at 57%, and after my wife's last Honda I have no trouble believing the system. Ford says a max of 10,000 miles, so that's what I'm planning on doing.

It seems that the majority of people are going to call me crazy for driving 10,000 miles on the factory fill. What intervals do you guys use? Also, how many miles did you have on your factory oil before changing?


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I changed to full synthetic at 4500 miles and will be changing every 5k.


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Changed to Royal Purple 5w20 @ around 8600 miles with no problems...

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I change to sythetic blend from motorcraft every 3k maybe a little early at that, i dont like worrying...and by doing it like that i can have the engine outlast the body, like my dads 93 F150 with 278k miles on the 302 5.0

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My factory fill will be going out at 1200 miles. My experience from looking at UOAs on Mustang and my previous cars is that is the best call.

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I have over 200K miles on my Cobra, it has had Mobil 1 since new, about every 5000 miles I change it...car runs like new to this day even with a supercharger added a few years ago...kinda hate to pull it for the 5.4, but someone will love to have it for a swap/build
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Every 5K. No way will I change every 10K, never....

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Quote:
Originally Posted by Crazy001 View Post
Hey guys,

I have 9,680 miles on my car at the moment, and will be doing my first oil change at 10,000 miles in a few short days. My OLM says the oil life is still at 57%, and after my wife's last Honda I have no trouble believing the system. Ford says a max of 10,000 miles, so that's what I'm planning on doing.

It seems that the majority of people are going to call me crazy for driving 10,000 miles on the factory fill. What intervals do you guys use? Also, how many miles did you have on your factory oil before changing?
My dealer recommends 7.5K...

2011 3.7L V6 Mustang MT82
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Premium package - 18" Wheels
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5k-6k miles. I'm sure I could push the oil longer, but oil is relatively cheap so I don't feel the need to push my oil changes out as long as possible. Although, I'm sure someone will come in here and criticize me for that.

I've been using M1 since my first change. Wix or K&N filters.

You don't care when my car was built or what options it has.
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I notice my mpg start to drop every 4800-5000 mi so that's when I change mine.

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For those that think they are smarter than the factory engineers. Have you ever considered having an oil sample analyzed to see whether or not you actually need to change your oil at 3000 miles, 5000 miles? Remember that this engine holds TWO GALLONS of oil, 30% more than the 4.6 cars held.

Unless your engine has a lot of miles, you use garbage oil or you just beat the daylights out of the car then I think you're probably wasting your money. I have an oil sample bottle sitting on the shelf in the shop and will be sending out a sample on the next oil change, when the car tells me to change it.
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Quote:
Originally Posted by me
Although, I'm sure someone will come in here and criticize me for that.
Quote:
For those that think they are smarter than the factory engineers. Have you ever considered having an oil sample analyzed to see whether or not you actually need to change your oil at 3000 miles, 5000 miles? Remember that this engine holds TWO GALLONS of oil, 30% more than the 4.6 cars held.

Unless your engine has a lot of miles, you use garbage oil or you just beat the daylights out of the car then I think you're probably wasting your money. I have an oil sample bottle sitting on the shelf in the shop and will be sending out a sample on the next oil change, when the car tells me to change it.
That only took 10 minutes.

Whatever, it's my money to waste. If you want to put 10k miles on your oil changes that's your prerogative, just like it's mine to only run 5k miles. I do my own oil changes and I'm not a cheap skate, so in the grand scheme of things, $50 of oil every 4-5 months isn't going to break me.

You don't care when my car was built or what options it has.
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post #13 of 280 (permalink) Old 10-02-2011 Thread Starter
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For the record, I have used Blackstone in the past and will be sending a simple in for oil analysis when I change mine. I'm very curious to see what my factory fill looks like after 10,000 miles!

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I did my first oil change at 3k and went synthetic.I would like
to take it to 7 to 8 k but I start getting nervous and twitchy
after 5k.Something we all should keep in mind there is
8 qt. Of oil in there!

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old timers cant believe that technology is changing. When to change the oil depends on so many different factors. What climate you are in, how hard are the miles you drive, how often you drive and miles. You have to look at the whole picture to determine when is best to change the oil. I know up here in the north our winters are pretty harsh and oil changes must be done with less miles. Don't wait more than a year to change your oil even if you have not hit 10,000 miles or the OLM has not gone off.


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