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  1. J

    Ram Cummins inline 6 oil cap oddity

    15w-40, 5w-40, and 10w-30 are the popular API rated grades in the US diesel market, in that order. Browse next time you're in walmart. Since the time of straight grades, 15w-40 has been the most common, 5w-40 for extreme cold, including paw paw's tractor. Now even Class 8 trucks are moving to...
  2. J

    Ram Cummins inline 6 oil cap oddity

    That's really what I was alluding to. I think we'd all be surprised how much modern tunings prioritize in-cylinder NOx reduction (via EGR, but also delayed injection timing) and noise reduction at the expense of efficiency and soot output, and then count on the DPF to clean up the soot, using...
  3. J

    Car prices to rise due to tariffs and certain vehicles possibly ...

    At a minimum, I expect window stickers reflecting $600 nitrogen fill, $400 floor mats, $1000 "courtesy package" PDI fee, and $800 window tinting will return.
  4. J

    Car prices to rise due to tariffs and certain vehicles possibly ...

    The same people that need their student loans "forgiven" are the national experts on tariffs.
  5. J

    Ram Cummins inline 6 oil cap oddity

    That is IMO the best of the conspiracy theories available amongst the internet experts. The "cold flow" experts will be along shortly to debate their stance(s). To which I will ask, well what is "cold." (The difference in 5w and 15w is roughly 10 deg C.) The rub is that 10w-30 is not...
  6. J

    Ram Cummins inline 6 oil cap oddity

    The "problem" that is oil sensitive is attributed to deposits. Not grade, deposits. The other "problem" is a machining issue that leads to lifter rotation and wipes cams. Also not related to grade. (Unless one suspects fuel dilution in which case the move from 15w-40 is headed in the wrong...
  7. J

    Ram Cummins inline 6 oil cap oddity

    Let me guess, you aren't familiar with CK-4 grades commonly available in the US market? The sun and the snowflake also don't mean summer and winter. If you open the manual there's a temperature threshold. Lots of southern states qualify for sun oil grade in the winter, even if there's snow on...
  8. J

    My Wal Mart has both Purolator 20k and ENDURANCE filters

    Well, for the 9972 it matters to me not.
  9. J

    Fram Endurance vs. Mann cartridges

    I need a filter wear scar test.
  10. J

    My Wal Mart has both Purolator 20k and ENDURANCE filters

    Which then begs the question, do I stock up or not. FE7317 FE9972 FE3976
  11. J

    Proper adjustable endlinks adjustment

    Yes, when the endlink is perpendicular the torque imparted on the bar is maximized...for a given lever length and given force. But when you change the geometry you're usually changing all three things - the orientation of the end link, the orientation of the bar end, and the angle between them...
  12. J

    My Wal Mart has both Purolator 20k and ENDURANCE filters

    As of yesterday, all the FE in our store was moved to the clearance aisle, but not price reduced...yet. I expect within a few days.
  13. J

    How does buy back process work on a totaled vehicle

    Insurance and financial markets are highly regulated. I'm not suggesting to regulate something that presently exists in the unregulated market. Banks are publicly supported. (They get money to lend from the federal banks.) It's in the public interest that they don't lend in a way that makes...
  14. J

    How does buy back process work on a totaled vehicle

    Maybe gap insurance is the band aid and not the solution. Without it people get forced into down payments. The bank only lends the recoverable amount. Anything beyond that is a calculated risk on their part that gets factored into the fee/rate. Fewer customers are therefore upside down...
  15. J

    Proper adjustable endlinks adjustment

    Assuming the angle of the end link doesn’t then work against you. Because triangles and rotation and stuff. That’s the sin theta term. Bit in general, probably a good guess.
  16. J

    How does buy back process work on a totaled vehicle

    Value is what the revenue could be generated when the physical product is sold. If the bank had to repo the new car, they couldn't recoup any revenue out of the dealer prep nonsense, various fees, and additional service/warranty bits. There is no value add for all the additional nonsense. So...
  17. J

    Delvac Rebate - Spring 2025

    My first two delvac rebates hit my inbox tonight...30 days after the "date paid" shown in their portal. Not to shabby.
  18. J

    How does buy back process work on a totaled vehicle

    IMO, it should be illegal to finance things that don't add value to the product. We bought a replacement camper last year. I briefly considered the "extended warranty" (service plan) and financing. The saleman made the service plan sound like a no-brainer. Of course it was. It was a 3 year...
  19. J

    Proper adjustable endlinks adjustment

    Tau equals F times L times sin theta. Minor changes to end link geometry will only have subtle impact on the relationship between the sway bar bushings and the attachment point to the axle/knuckle/a-arm. If you want it as stiff as possible, set it up so that the rotation of the bar is...
  20. J

    Valvoline Maxlife ATF, Pack of 3 on Amazon - $51 ($17/each)

    And months later they still haven't fixed the "six count, pack of two" description.
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