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  #1  
Old 05-21-2011, 10:58 PM
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How Often Do You Change Your Oil?

So I'm curious as to how often everyone changes their oil. I'm going to be switching over to Mobil1 and am curious as to if the whole 3,000 mile change is still the norm. My uncle is a former auto mechanic and he told me years ago now that full synthetic oils shouldn't be changed for at least 5,000 miles at a minimum. Also, he said that there was no advantage to going full synthetic compared to adding half an oil change of full synthetic and the other half using conventional oil. Any info on any of this? Thanks all!
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Old 05-21-2011, 11:25 PM
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Re: How Often Do You Change Your Oil?

synthetic oil, every 5k
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Old 05-22-2011, 12:36 AM
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Re: How Often Do You Change Your Oil?

3,500 Amsoil
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Old 05-22-2011, 01:47 AM
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Re: How Often Do You Change Your Oil?

VW Golf - Mobil 1 every 2K
GC - Cheap Castrol 4k.. switching to Mobil Extended Mileage 5K
Miata- Castrol 3K, switching to Mobile 1 5K
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Old 05-22-2011, 06:43 AM
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Re: How Often Do You Change Your Oil?

Every 2500-3000 miles I change it with Mobile 1 Extended Performance and I change the Filter with a Mobile 1 Filter.
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Old 05-22-2011, 07:19 AM
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Re: How Often Do You Change Your Oil?

Valvoline synpower, change 8,500. Tried Castrol full synthetic and used Royal purple for 3 oil changes. The hemi runs MUCH better on Valvoline than that RP stuff, and I would never recommend RP for use on a 5.7.
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Old 05-22-2011, 07:32 AM
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Re: How Often Do You Change Your Oil?

6000 miles per directions
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Old 05-22-2011, 09:51 AM
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Re: How Often Do You Change Your Oil?

Castrol full synthetic, 5k miles
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Old 05-22-2011, 10:05 AM
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Re: How Often Do You Change Your Oil?

Mobil 1 at 6000 miles with a Mobil 1 filter.
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Old 05-22-2011, 10:11 AM
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Re: How Often Do You Change Your Oil?

Full synthetic, every 5K miles.
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Old 05-22-2011, 10:51 AM
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Every 12000 with amsoil with ams filter... Oil is rated for 25,000

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Old 05-22-2011, 01:37 PM
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Re: How Often Do You Change Your Oil?

mobil one 5w-30, 7500 mile change interval for me.
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