Wife's car is due for an oil change, the 40k, and plan on switching to Leichtlauf.
Is it really suggested to bump down from the 10k to a 5k oil change? I would run 10-15k on my Toyota's (with testing) and saw no abnormal numbers and blackstone would report back good findings.
All my oil analysis indicate 10K is adequate for my usage (3 track days a year and 12 months of DD). YMMV.
Does anyone know where we can get a Group IV oil in the states?
As in manufacturer or online shop? Do you have a specific brand you're looking for?
Not really, I just didn’t think we could get it here maybe that was Group V I don’t remember now.
Worth a few minutes at this link:
https://youtu.be/Yx__NpU6glI?t=13m38s
If you have more time the whole video is worth it.
With top-side oil changes, I’ll assuming the oil drain plug underneath is not being replaced. Could this be an issue long-term?