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    7500 miles on oil and TBN of 7.1

    Got my TBN results today from Blackstone Labs. 7500 miles on Mobil Delvac 15w-40 dino oil in the truck in my sig. 70% of those were city miles. Majority of time, engine reached full operating temp on each cold start. TBN came back at 7.1! Comment from Blackstone: "The TBN for this sample was...
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    What are the units of TBN??

    Hi, when you get a TBN analysis, what unit is it reported in? Is it pH? Molality?
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    Your favorite fast yet inexpensive car

    Auto makers keep raising the bar with new cars. Just saw the new Acura TL, 280 hp out of a V6 family sedan! Say your goal was to reliably achieve 12-13 second quarter miles in a daily driver with somewhat reasonable fuel economy. Without going into higher end cars like the M5, etc., what...
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    FS2500 vs. Amsoil Bypass Question

    According to FS2500, their filter is 2.78 microns absolute. http://filtrationsolutionsww.com/product.html According to Amsoil, their bypass filter is 2 micron absolute. http://www.amsoil.com/storefront/bf.aspx The difference between the two is that FS2500 claims you have to replace the...
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    How many miles on Rotella Synthetic or dino?

    With an Amsoil full flow and bypass filter, how many miles do you think I can go with my truck in between oil changes using Rotella synthetic or Delvac dino? How about with an Amsoil full flow WITHOUT a bypass? Based on previous UOAs and diesels like mine. Thanks!
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    Change oil but not filter?

    Say I go with an Amsoil filter Eao80 that's good for 25,000 miles... Would you guys say it's a good idea to change the oil every 7k miles or so and leave the same oil filter on? I could do an oil analysis but it would be the same cost as just changing the oil so I figure I might as well. That...
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    Anti-theft vehicle GPS Tracking recommendations?

    Hi, I got two dirtbikes stolen last night. It was definitely a wake up call and now I want to install a GPS tracking device into my vehicles for better peace of mind. Does anyone have any recommendations? There are so many on the market it makes your head spin. I don't want something where you...
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    Every oil is good, don't ask anymore...

    Any bad oil brands out there?
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    Frantz Filter Elements

    Has anyone bought the actual filter elements they sell on Frantz's website? I've been using Scott 1000 rolls and was wondering how different they are (if any) from the "genuine" filters. Also, how tightly do you guys pack your rolls in? Do you put the canister on the ground and use the palm of...
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    Junk service at junk shops

    Ever notice how a lot of times mechanics don't know *** they're talking about. They just start naming parts you need to replace without really knowing what the problem is. Like trial and error at the CUSTOMER'S expense. My uncle took his car to the dealer (to get good service) for a coolant...
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    Why is CJ-4 considered "bad" for older engines?

    Why is CJ-4 oil considered bad for older diesel engines? What is new on new diesels that are specified for CJ-4? Obviously there is a push for cleaner emissions and I believe they are also trying to wipe the older rigs off the streets as fast as possible. With the introduction of these new oils...
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    What is the chemistry behind Auto RX?

    I've been hearing good stuff about this AutoRX. I am still skeptical, however. How can it not destroy seals, gaskets, etc. but remove sludge? How can it remove sludge AND stop leaks? There is no miracle drug that has no side effects. This is the same. So I'd like to know the chemical reaction...
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    Which Antifreeze for Cummins 12 Valve?

    Hey guys, I search but couldn't find anything with "Cummins" in the coolant section. So my question is which coolant is best for my truck? A 1996 12 valve Cummins. I picked up 3 gallons of the Supertech green stuff and I was going to mix it with 50% distilled water. Is that ok? Or should I dish...
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    Quicker oil pressure on cold start with synthetic?

    For you guys running synthetic, do you notice a significant decrease in the amount of time it takes to build oil pressure on a cold start compared to dino oil? I'm not just talking about cold weather, even in the summer. I'm considering switching to synthetic but I have to weigh out the price...
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    What's the efficiency of TP element filters?

    Just curious, what's the efficiency of tp element bypass filters? Take the Frantz for example. I just watched the FS2500 video. Is it just me, or does it look like they are using a "tp-like" type of system as well? Also, Amsoil says their EaBP filters are good for down to 2 microns at 98.7%...
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    Does tranny fluid WEAR OUT??

    I'm thinking of installing an Amsoil bypass filter for the tranny. Does tranny fluid "wear out" like motor oil? Or will it keep going forever as long as you keep it clean?
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    Going to install homemade bypass filter setup...

    Ok guys, I have a few simple questions. Should've used this site long ago to find my answers, I've been a member for a while now. Anyway, I've got a remote 3/4-16" oil filter mount that I'm going to be setting up for a bypass filter in my 12v Cummins. I will tap in at the oil port above the oil...
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    What is GF-2/GF-4? Mobil-1 in Jaguar?

    I just changed the oil in my uncle's Jaguar S-type. I looked at the manual and it said to use a GF-2 and something like SAE EC oil or whatever. But I went ahead and used 5w-30 Mobil-1 oil anyway. The mobil-1 didn't match any of the specifications of the oil stated in the Jaguar manual. For...
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    Supertech Antifreeze

    I picked up 3 gallons of non-diluted Supertech antifreeze tonight from Wally World. Is this good stuff? Same as any other antifreeze? Or should I return it and get another brand? It's green in color and says you can mix it with ANY vehicle and ANY color antifreeze. It has "ANY" capitalized...
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