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  1. M

    Gasoline fuel bypass questions

    Was reading through some old threads and came upon this one... If I were in this situation and it were a returnless fuel system I would put the bypass filter in (before the ff filter) and a check valve with 1psi or so of cracking pressure in parallel with the bypass filter. The check valve...
  2. M

    Nissan Navara TD27 Amsoil ACD30 40k km

    Wow, very nice UOA! Copper is excellent. Very low Si indicating that the bypass filter is doing it's job. I'm no expert, but Fe at 41 after 40km doesn't seem like a whole lot even with 10L of top-up. Do you know the average Fe for your vehicle? How large is the sump?
  3. M

    Motor Guard Core Size

    Someone on a turbodiesel website posted about using a couple of rubber o-rings with his motorguard to fit the wide-cored toilet paper rolls snugly. I haven't tried it myself but it seems like a great idea! If it worked there wouldn't be any gaps for the oil flow to bypass.
  4. M

    Do bypass filters void new vehicle warrantys?

    <div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">Theoretically, NO...unless they can prove the bypass directly caused a failure (e.g. the bypass filter element deteriorated and plugged oil passages, there was insufficient restriction to the bypass...
  5. M

    TP bypass housing manufactures

    Some say that an unmodified Motorguard works just fine if the oil doesn't heat up much above 212 degrees F. I would assume with the heat loss from the line this applies to all cars except for drag racers.
  6. M

    How to plumb preluber with bypass filter?

    There are two types of prelubers - one is a pump and another is a pressure accumulator.
  7. M

    Reuse Mobil 1 EP filter?

    Too bad they don't have filter minders for oil filters. I wonder if you could determine when to change the filter based on an oil pressure gauge? That could be an interesting experiment. Here's how I might proceed with it: 1. Change oil and oil filter 2. Drive car on the highway. 3. After...
  8. M

    How to plumb preluber with bypass filter?

    You will want the restrictor on the end of the hose that connects the line for the bypass filter to the tee. You will then connect the preluber to the other port on the tee. That way your preluber won't be pushing oil through the restrictor. That seems like a lot of lines. If your OPS is...
  9. M

    What size restriction req?

    Here's how you'd find the appropriate check valve given the following data sheet: <a...
  10. M

    What size restriction req?

    What's a good rule-of-thumb for bypass filter flow as a percentage of total oil system flow? Is it 5%, 10%? As Gary mentioned, the filtration also increases the slower you filter the oil. I bet there is a sweet spot between not flowing enough oil and flowing too much where the pressure inside...
  11. M

    Differential Pressure Gauge?

    Isn't the crankcase pressure near atmospheric due to PCV? If that's the case then there isn't the need for differential pressure if returning to the sump - just read the pressure before the filter.
  12. M

    Differential Pressure Gauge?

    Is this for a remote dual filter mount?
  13. M

    Oil cooler delete = better MPG?

    The oil heat exchanger is not only for emissions but keeps the oil at the optimal temperature for a less wearing engine and longer oil life.
  14. M

    Oil cooler delete = better MPG?

    It would probably result in lower MPG. The coolant warms up BEFORE the oil and the oil-to-coolant cooler on your Vic will cause your oil to heat up sooner with coolant heat. Do a search on Gary Allan's posts and you'll find some test results he did with his Jeep Wrangler's heat exchangers a...
  15. M

    Oil Breakdown With 5w-20

    Fuel dilution can lower the viscosity of the oil. You can measure that in an oil analysis report.
  16. M

    TP getting narrower?

    Regular OE oil filters are usually made with paper fibers. The TP filters are different from OE filters in that they all compress the TP with oil pressure. This helps to keep the fibers from escaping the roll.
  17. M

    frantz or motorguard location of 1/16 fitting.

    It's beneficial to locate the restrictor as close to the engine as possible. That way everything after the restrictor will see lower pressure. There will be less stress on your oil hose and if there was ever a cut in the line it would take much longer to dump your oil. As an extra safety...
  18. M

    Open Source Electrostatic Bypass Filter Project

    <a href="" target="_blank">From this literature</a>: "The decrease in the AN of the new ashless hydraulic oil suggests a partial removal of additives, while the AN decrease of the used turbine oil could be due to a...
  19. M

    Open Source Electrostatic Bypass Filter Project

    I would think that the electrostatic precipitator would precipitate some important oil additives like zinc. It might be more useful as an air filter instead. Plus air is less conductive. I wonder if the debree would dislodge after turning off the car and what affect that would have.
  20. M

    By pass on Kohler 27 HP engine?

    I went to a local hydraulics shop and they had 1/4" NPT check valves on sale for $5 a piece.