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Old 12-30-2006, 05:26 PM   #11
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Will: if going every 10k, would you want to change the filter in between?
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Old 12-30-2006, 05:46 PM   #12
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Old 12-30-2006, 08:38 PM   #13
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Thanks Bill.

That'* the article I was referring to jwakamud.
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Old 01-01-2007, 06:10 AM   #14
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I put a time limit of 4 months on motor oil. My last oil change interval in those 4 months resulted in only 1100 miles on the oil. I changed it out.
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Old 01-01-2007, 08:51 AM   #15
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I have been running Mobil 1 for about 11k now. It has actually increased my gas mileage about 1-2 mpg per tank over regular dino juice. i definitely recommend it.

I have been changing it every 3k. But you guys are saying that its ok to go to 5, even 6 k between changes. This would definitely help my wallet with mobil 1 being such an expensive oil.
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Old 01-01-2007, 10:48 AM   #16
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how about using it for the first time ? my car already has 118 thousand miles and has always had regular 10w30 oil but i would like to go to Mobil 1 but some say it may start leaking because it will clean out sludge that was blocking the leaks ? i have a 2001 pontiac bonneville se.
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Old 01-01-2007, 08:42 PM   #17
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Changed over to synthetic on my '93 SSE at 115K without any problems. Also saw 1-2 mpg increase, especially on the highway. Actually reached 30 mpg running 75 on the interstate!!!

I'm using Royal Purple... change the filter - NAPA gold, which is made by Wix - every 5K miles and top off as necessary. Change oil and filter at 10K. The 5K interval is nice because I rotate the tires and have acces to grease the front end at the same time. Takes ususally about an hour to do all the stuff.

Hope this helps.
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Old 01-04-2007, 01:13 PM   #18
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I'm glad this topic came up too. I just recently switched over to Penzoil Platinum Full Synthetic oil in both my Bonne'* and was wondering about the oil change interval now that I'm running synthetic.
BTW, Advance Auto Parts has a sale going right now on the Penzoil Platinum Synthetic, buy 1 get one free. I've stocked up on about 80 quarts of the stuff. I've got enough to do several oil changes but won't be eating for about a month.

I was also wondering how often to go on oil changes. I've been going about 3k on the dino oil but think I will go to 5k on the synthetic.
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Old 01-04-2007, 03:04 PM   #19
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Man, I got ripped off. I didn't get any MPG increase going from dino to Mobil 1.
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Old 01-04-2007, 03:11 PM   #20
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A lot of "old-fashioned" people will probably say you don't need synthetic. My dad always says "you shouldn't use it, you're wasting your money...blah, blah, blah." I changed over at 107,000 mi. in April. I have 127,000 now and have had no issues.
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