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    Calibrating a mechanical watch?

    If you have a watch kit (see Amazon) and are able to remove the caseback from the watch you will see the +/- screw indicating the direction to turn for speeding it up or slowing it down. It's pretty simple to do with trial and error over a number of days. Make minor adjustments to begin with...
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    5w20 vs 10w30 Pennzoil UP in Ford 5.4L

    Originally Posted By: igs Originally Posted By: TreyB because of traffic / idling on construction sites / Texas heat, etc. I have to add an extra quart between changes (generally around the 5,000 mile mark of a 7,500 mile OCI). Why would idling cause oil consumption? Maybe it's because...
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    5w20 vs 10w30 Pennzoil UP in Ford 5.4L

    Sweet. Thanks guys for the quick responses. Exactly what I wanted to hear.
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    5w20 vs 10w30 Pennzoil UP in Ford 5.4L

    Guys a couple of oil changes ago I started using Pennzoil Ultra Platinum 5W20 in my 2006 F250 with 5.4L gas burner. It's time for an oil change again and I typically use Amazon to shop because it's cheaper / more convenient and I live in the DFW Metroplex so I get the product either same day...
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    Royal Purple 5W20, 3000 miles, 2005 Ford F150 5.4L

    TREY: Your sample technique was fine. You've got a very nicely wearing engine at 33,000 miles. Universal averages show typical wear from the Ford 5.4L engine after a 5500-mile oil change. This oil was in service for 3000 miles when this sample was taken, and all of the wear metals read around...
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    Royal Purple 5W20, 3000 miles, 2005 Ford F150 5.4L

    If the Royal Purple base number starts at 14 but after 3,000 miles it is down to 3.2 according to my analysis, isn't that a pretty significant loss from the original?
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    AMSOIL vs. any other brand

    Got a question. I typically use Royal Purple Full Synthetic 5W20 in my truck. I have had oil analysis' done and the RP seems to be doing pretty well in my truck. I also have a motorcycle and have been using the Royal Purple Synthetic Motorcycle oil. Here lies the question. A friend of mine...
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    Royal Purple 5W20, 3000 miles, 2005 Ford F150 5.4L

    How do I just put the document into my thread?
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    Royal Purple 5W20, 3000 miles, 2005 Ford F150 5.4L

    I'm new to this website and I have a question or two. 1. What is the starting TBN for the oil that I am using? Royal Purple 5w20 2. The report says my engine looks pretty good, what do you guys think? Please let me know...
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