Send a sample of your current oil to a lab (like Blackstone or Polaris). They will tell you what is wearing (iron, copper, lead) and whether your current viscosity is holding up.
You need a minimum HTHS of 3.5 cP for most pushrod engines. For sustained WOT (wide open throttle), aim for 4.0+. xam jenny custom oil
I spoke to a mechanic in Tennessee who refuses to use anything else. "I put Xam Jenny in a seized air compressor pump," he told me. "Let it soak for a week. That thing fired up and ran quieter than the day it was new." Send a sample of your current oil to
Xam Jenny Custom Oil is a bespoke lubrication solution designed to meet the unique requirements of specific machinery, equipment, or industrial processes. Unlike standard, off-the-shelf oils, Xam Jenny Custom Oil is formulated to address the distinct challenges and operating conditions of a particular application. This customized approach ensures optimal performance, efficiency, and equipment longevity. For sustained WOT (wide open throttle), aim for 4
: Chemical analysis of some samples has shown significant variation between batches, leading some analysts to describe it as "inconsistent"—with one batch reportedly containing enough molybdenum "to lubricate a space shuttle". The Evolution of the Formula