Been reading user anecdotes about R&P for a while now, and it's like 98% positivity among those who reported oil consumption before using R&P and seeing substantial improvement after.
My Miata isn't currently burning an oil at all, but I put R&P in it and I intend to change it every 3k because it makes me sleep well.
As an avid user of AMSOIL, it’s a noticeable difference, amsoil is the king
If I used the Valvaline High Mileage Blend oil (red bottle) it would leak less oil.
With Amsoil even if it's not signature series I trust it more than any other 0w8.
I run Amsoil and my oil change interval is 25k so the answer is it depends.
I only use Amsoil Signature Series in my B58.
I changed to that and really happy with it so far, shifting is butter smooth.
Based on my own tests, I found the AmsOil to be the best at reducing heat a few degrees. It's not cheap, but it's still cheap insurance, all things considered.
I use Amsoil 20w50 in all 3. You don’t need a different oil for the trans. Amsoil is not cheap but I’ve been using it on my 03 FatBoy since new and have had no problems.
Suggested I change oil from Castrol Syntec to maybe Royal Purple or Amsoil.
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