In a recent test for a certain category of karts, recently someone has done a test on the power bank with 5 different brands of oil. Two brands were not mentioned.

• 1st  test 10W30 5.80 hp at 5780 rpm Comma.
• 2nd test 10W30 5.90 hp at 5850 rpm
• 3rd  test 10W40 5.85 hp at 5800 rpm
• 4th  test 10W30 6.00 hp at 5900 rpm Castrol Power Rs
• 5th  test 10W30 6.10 hp at 6091 rpm Polytron

With Polytron 0,1 hp and almost 200 rpm more!