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<blockquote data-quote="Johnny O" data-source="post: 973803" data-attributes="member: 61743">I recently got a UOA with Mobil 1 0w-30 Fuel Economy Formula after 6500 miles and the iron was much higher than it was on the 5000 mile UOA.&nbsp; It&#039;s only Parts Per Million (PPM) though.&nbsp; As long as you run it for 5000 to 6000 miles I wouldn&#039;t worry about it.&nbsp; I went back to Pennzoil Platinum 5w-30 and Mobil 1 filters since I decided to stretch out my oil changes to the full 7500 miles.&nbsp; I&#039;m on my third 4.0 SOHC-powered Ford and the bottom line best UOA&#039;s I&#039;ve ever had were with Pennzoil Platinum...which is a little bit cheaper than Mobil 1.&nbsp; Not that Mobil 1 UOA&#039;s were bad, just that the Pennzoil was better.Search the Used Oil Analysis - Gas Engines Forum at www.BobIsTheOilGuy.com for 4.0 SOHC Fords and you should be able to find mine and any others.&nbsp; I am JohnnyO there too although I don&#039;t post much any more.</blockquote>

[QUOTE="Johnny O, post: 973803, member: 61743"] I recently got a UOA with Mobil 1 0w-30 Fuel Economy Formula after 6500 miles and the iron was much higher than it was on the 5000 mile UOA. It's only Parts Per Million (PPM) though. As long as you run it for 5000 to 6000 miles I wouldn't worry about it. I went back to Pennzoil Platinum 5w-30 and Mobil 1 filters since I decided to stretch out my oil changes to the full 7500 miles. I'm on my third 4.0 SOHC-powered Ford and the bottom line best UOA's I've ever had were with Pennzoil Platinum...which is a little bit cheaper than Mobil 1. Not that Mobil 1 UOA's were bad, just that the Pennzoil was better. Search the Used Oil Analysis - Gas Engines Forum at www.BobIsTheOilGuy.com for 4.0 SOHC Fords and you should be able to find mine and any others. I am JohnnyO there too although I don't post much any more. [/QUOTE]

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