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  1. SparkYellow

    What 5W30 oil brand do you use in your CX-9?

    I wonder what gave him the confidence, at 100K miles, to say no transmission service, and again and again at 200K, 300K, and 400K miles. Most people don't expect 400K from anything that is supposedly a "closed system" and "lifetime." 😅 He seems educated and diligent about other aspects of the...
  2. SparkYellow

    Grounding Cylinder Head Test Results (2024 CX-5 Turbo)

    I added one cable from the top skinny bolt on the alternator to the factory bracket (shared with factory cylinder-to-chassis cable). On the HKS Japan website, I didn't find simple kits like what are common here. They install a round plate on the battery ground terminal to grow an octopus of 12...
  3. SparkYellow

    Grounding Cylinder Head Test Results (2024 CX-5 Turbo)

    Thank you! With the clamp on meter, is 1 amp too low? A better connection point would read higher? Can I use this one with probes? Got it when I had electrical problems in May. When I monitored engine load in the past, the value was constantly changing. I recall that between the options of...
  4. Screenshot_2026-01-03_095230.webp

    Screenshot_2026-01-03_095230.webp

  5. SparkYellow

    Grounding Cylinder Head Test Results (2024 CX-5 Turbo)

    The alleged benefits and ease of installation convinced me to try. If you were my neighbor, I would have installed the wires for you already. Time is what I have. I assembled two wood models in two days like an addict. That's an expensive hobby because the models I want to build are priced over...
  6. SparkYellow

    How insane is a 140mph+ speedometer?

    His question was the subject of the thread. 😁
  7. SparkYellow

    Comment by 'SparkYellow' in media 'IMG_20260102_180715574.webp'

    The headlights are grounded to the horizontal bracket
  8. SparkYellow

    Comment by 'SparkYellow' in media 'IMG_20260102_180655666.webp'

    There is a vacant, threaded grounding point in the lower right corner.
  9. SparkYellow

    Comment by 'SparkYellow' in media 'IMG_20260102_180641195.webp'

    This is a 1/2 inch round head bolt that I picked up from HD a few days ago. A longer one would probably work for the two points on the engine. The ring connector is flush against the underside of the bracket. Here I was able to secure the nut with a 10mm socket while tightening the top.
  10. SparkYellow

    Comment by 'SparkYellow' in media 'IMG_20260102_180626060_HDR.webp'

    I can't really get both hands in the space between the firewall and the engine. These terminal bolts, if inserted square head up, the stud would almost touch the exhaust shield, and I can't hold the nut securely in that position. Need to check HD again for something that works better.
  11. SparkYellow

    Grounding Cylinder Head Test Results (2024 CX-5 Turbo)

    Got three wires now, two from the cylinder head (using existing holes) and one from the 5th bolt on the throttle body. Read somewhere else about folks grounding from the coil packs, but the bolts on my coil packs seem to be fasteners only... Further reading indicates that there are different...
  12. IMG_20260102_180626060_HDR.webp

    IMG_20260102_180626060_HDR.webp

  13. IMG_20260102_180641195.webp

    IMG_20260102_180641195.webp

  14. IMG_20260102_180655666.webp

    IMG_20260102_180655666.webp

  15. IMG_20260102_180706903.webp

    IMG_20260102_180706903.webp

  16. IMG_20260102_180715574.webp

    IMG_20260102_180715574.webp

  17. SparkYellow

    Grounding Cylinder Head Test Results (2024 CX-5 Turbo)

    Absolutely! It's just that I prefer tinkering over reading or analyzing. Once I get the cables in, I will report back and see what adjustment, if any, is needed. My parts shelf is filled with additives and snake oil, while other folks keep mostly *cough cough* beauty products in their cabinets. 😁
  18. SparkYellow

    Grounding Cylinder Head Test Results (2024 CX-5 Turbo)

    I belong to the snake oil camp. ☺️ While searching for grounding kits, the product reviews reveal positive feedback when installed on a wide range of vehicles. Nothing backed by scientific analysis though, just simple user observations.
  19. SparkYellow

    Grounding Cylinder Head Test Results (2024 CX-5 Turbo)

    As a noob with short attention span, I have skimmed through the lengthy discussion and charts while trying with items on hand. Folks can get very technical here and the info can be hard to digest. We need cables with ring ends that are 2 to 3 ft long. A basic kit on Amazon is $14 (5 cables...
  20. Screenshot_20260101-121507.webp

    Screenshot_20260101-121507.webp

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