Sure You can find ALOT of data to choose from on this, but alot of it truly is unclear. Individuals are functioning alot of different weights and brands determined by mods. Some are utilizing large oils, or Rotella. The ENGINE was precisely what I wanted at the value I used https://elevemotors.com/product/jdm-nissan-skyline-rb26-motor-for-sale-used-rb26-engine/