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    Amsoil 5w40 DEO vs 5w40AFL Differences? ZDDP?

    Does anyone know what the real world differences between the DEO and AFL? AFL is the European car formula and DEO is a diesel oil. It looks like DEO is thicker and has more additives. Also if anyone has any info on ZDDP levels that would be helpful. Im looking for a universal replacement for my...
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    Amsoil 2cycle oil allows rust during storage.

    This is not my info. I don't really have an opinion one way or another. I just thought it was and interesting conversation. One oil is amsoil interceptor used on a snowmobile engine. Another engine was run on polaris blue a cheaper dino 2cycle. One crank is rusty the other isn't. Pics to...
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    '69 Bronco w/302 Valvoline AC 10W-40 2745mi

    This oil was in service for about 9 months including winter storage. About two qts of make-up oil was added. 8 oz of valvoline synpower oil treatment was also added. This 302 dynoed at about 300hp and gets run in all conditions from winter hunting to high speed highway in 100 deg weather. There...
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    Where can I get some old gas analyzed?

    I have 450 gallons of 10-15 year old gas. I have run some of it in an old motor that I don't care about and had no problems. I would like to get it analyzed just so I know what it is. It has a preservative called zyline in it. Anybody know where I can get an analysis done. I don't think I could...
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    Cylinder Wear VS Coolant Temperature-Graph

    I thought some would be interested to see this graph. I recreated the graph from an old engine textbook so it isn't perfect but it's very close. The only details I have about the test is that it was run for 60hrs and done by Continental Motors. The book is copyrighted 1986 so the test is at...
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    How do I post something from an excel file?

    I got an interesting graph showing engine wear vs coolant temp but I can't figure out how to post it. Anybody got any idea? thanks
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    Magnefine P/S or ATF filter at Napa

    I recently went to napa to buy a filter for a my power steering and it took the dumb arse behind the counter a 1/2 hr to find the right part #. I gave him a wix number and a old Big A number but he couldn't cross either of them. The filter he came up with was a magnefine which I didn't expect...
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    Test Idea To Determine If Filters Bypass During Normal Operation

    I had this idea on how to determine how often the bypass in FF filters open during normal operation. If I put oil pressure gauges on the inlet and outlet of a remote mounted full flow it would show the pressure differential across the filter. Compare these pressures to the filters bypass rating...
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    I can't get my front brakes to work. Help!

    I have tried a lot of different things in order to fix my problem but I can't get much pedal or stopping effort out of the front brakes. The vehicle is a 1979 F-250 that has four-piston wilwood disc brakes on all four corners. The calipers were on it when I bought it and worked well at one time...
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    How much replacement oil is needed when changing TP

    For those of you who have a TP bypass filter, how much oil do you have to add when changing the TP part way through an OCI. This is assuming the TP is changed when the oil is cool and most of it has drained back to the pan.
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    Valv 5w-30 5K 5.7L GM + Oilguard vs Blackstone Comparo

    1996 5.7L Suburban Four Samples-The first three are from Oilguard the last from Blackstone. The third and fourth samples are from THE SAME OIL CHANGE. Last Column is Blackstone's Universal Averages at 3800 Miles The only oil used was valvoline 5w-30 All Climate No make oil ever added -used...
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    Types of married sex

    There are three types of married sex. Kitchen sex, bedroom sex and hallway sex. Kitchen sex: Newly married anywhere will do, rake the dishes of the the counter and go at. Bedroom sex: Romantic, in the bedroom after a nice dinner and some wine. Hallway sex: When you pass in the hall carrying...
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    Is zinc used as anything other than an anti-wear additive

    Is zinc only used as an anti-wear additive or does it have another use in oils? So basically, is all the zinc that shows up in a VOA anti-wear additive? I have noticed that the amount of zinc in most oils have been reduced and will probably go down even more when the new SM oils come out. What...
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    What will a UOA during ARX rinse cycle show?

    I would like to do an analysis on some ARX rinse oil and I am wondering what differences would exist when compared to a regular oci. I know some of you will say don't waste the money but I only drive this vehicle 1500-2000k per year. So I want to know what is going on in there but how will the...
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    How many people here prefill their filter?

    I'd do a poll if I could but we don't have that option. I'm wondering how many people prefill their oil filters before they put them on? I've had several friends watch me do this and the usual reaction is "why, I've never seen anybody do that before" I let my engines drain overnight if I can, so...
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    Oilguard Cold Flow Rates

    For those of you who have an oilguard bypass,I'm wondering how much these filters flow at starting temps or if they even flow at all? The reason I ask is I was considering getting an oilguard and then plumbing the oil through a small cooler on the way back to the valve cover for a cheap and easy...
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    When during an Auto RX treatment did you see an increase in mileage

    I did an Auto-RX treatment on a 1996 GM 5.7L and didn't see any increase in gas mileage until the last fill up on the rinse phase. It was getting about 16-16.5 mpg until the last fill up where it got 18.0 mpg. (pretty darn good for a 5700lbs 4x4 suburban!) The vehicle is driven the same 450...
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    Oil thickining/ increased oxidation with Auto-RX

    I have seen an increase in oil pressure during the cleaning phase of the AutoRX treatment. I'm only 800 miles in and the oil is dark already. I see 5-7 psi higher oil pressure while the oil is still cold but only ~2psi when the oil is hot. I have 2 5/8" mechanical oil pressure and oil...
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    Who makes/bottles GM's oil?

    Does anybody know what brand of oil GM puts in their GM labeled bottles. Or do they blend it themselves. I am wondering because my 2001 8.1L will use a Qt in 3k on valvoline 5w-30, but uses none in 3k when I have the dealer change the oil. Obviously the GM oil is better and I'm curious what it is.
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