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Old 01-25-2011, 10:07 AM
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Default How many miles on Mobil 1 Synthetic between changes?

I have an 07 Mercury Mountaineer V8 and put in Mobil 1 synthetic during the last oil change.
I heard I can go 10,000 miles.. Is that accurate? I used to change every 5,000 miles when I used synthetic blend.
My typical daily commute of about 14 miles total.
Currently have 45k miles and plan on keeping it till around 150k. Thanks!
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Old 01-25-2011, 10:08 AM
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EP says 15K I go 10 and have for the last 185K miles on my Yukon
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Old 01-25-2011, 10:18 AM
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I change every 5,000 miles on the cayenne.
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Old 01-25-2011, 10:41 AM
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If you go 14 miles a day for 365 days then that is 5110 miles. You should change it yearly anyway even if you have not gone many miles. A typical daily commute of 14 miles total will be hard on the engine so I would not try to extend the interval of changing the oil.
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Old 01-25-2011, 10:49 AM
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I actually put on close to 20,000 miles a year. We travel a lot in the spring/summer.
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Old 01-25-2011, 10:49 AM
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the factory manuals on both my porsches say 15k miles, and thats what i do.



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Old 01-25-2011, 10:50 AM
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I go for 5,000 miles of 5 months, whichever comes first. I have two vehicles that I drive, so the months usually hit before the miles.
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Old 01-25-2011, 11:19 AM
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Most cars that have long itervals, like the Porsche, larger Benz, etc. will hold 8-12 quarts therefore longer change intervals. I'd feel comfortable with 7,500 between changes on your car, no problem. Wouldn't wait until 10K or over a year though.
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Old 01-25-2011, 11:31 AM
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I do 10k on my jeep,mobil 1
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Old 01-25-2011, 11:39 AM
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10k per synthetic oil change and I have 155K on a 2005 Nissan Frontier....45 miles one way commute 5 days a week.

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Old 01-25-2011, 11:47 AM
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About 5k on my Lincoln ls mobil 1 but after reading thus mightchange to 10 k
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Old 01-25-2011, 11:55 AM
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10,000 with a Mobil 1 filter.
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Old 01-25-2011, 12:03 PM
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I run Amsoil synthetic and use the Amsoil ea filters. They say you can go 20,000 miles, but I go 10,000 miles between changes on my wife's '06 Mercury Mountaineer 4.6 and my '10 Toyota Tundra 5.7. 65K miles on the Mercury and 20K miles on the Toyota, no issues on either vehicle.
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Old 01-25-2011, 01:46 PM
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Quote:
Originally Posted by JoeyM View Post
the factory manuals on both my porsches say 15k miles, and thats what i do.
I noticed that but after talking to the mechanic at the dealership, he recommended every 6,00 to 7,000 but said they can go 15,000 as stated in the manual. Better be safe then sorry in my opinion. And its a lot easier to go to the dealership where I am during school then back home in the summer
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Old 01-25-2011, 02:03 PM
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The thing about oils is not its ability to lubricate. It's the ability to clean. Its called hi-detergent oil, right?
Its like washing dishes. At a certain point, the detergent becomes saturated with what its cleaning, and can't clean any more. Thats what happens with oil.
That said, you have to base your oil changed on how dirty the oil gets. Sometimes my oil still looks clean at 5000 and sometimes looks black at 4000. Depends on engine loading, and just how much combustion byproducts is getting by the rings and contaminating the oil.
I change at 5000 with mobile 1, and changed at 3000 with dynosuar oils.
I'd rather pay a bit more for the oil and have proper lubrication than cheap-out and leave it in a long time.
Thats my opinion, anyway.
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Old 01-25-2011, 02:15 PM
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i go 10,000 on all my autos which ends up being once a year(with mobil 1). to me any more often than that and you might as well use cheap oil.
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Old 01-25-2011, 02:22 PM
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7000 mi trucks and suv or 6months
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Old 01-25-2011, 02:22 PM
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Once a year or every 100 hours on my Yamaha outboards. 7,500 on my vehicles.
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Old 01-25-2011, 02:24 PM
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Went 5K for years using Mobil 1...have stretched it out to about 7-7500 now....seems to be fine....
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Old 01-25-2011, 03:33 PM
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So I rebuilt my marine engines (302 fords), 30 years old, who knows what maintenance, but I'm gonna guess not good. Oil pans were spotless, pickup screen was clean, just some normal varnish on the parts. Oil always looked lousy, even after an oil change.

I'll bet you could go 20,000 with no problems. However, I did notice our BMW lost its engine tick after an oil change at 9,000 miles. Whatever you do, DON'T use a heavy oil!
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