Hydraulic lifters or hydraulic lash adjusters (hla) may not bleed down properly and cause an engine miss if

the wrong viscosity of oil is used

Oil viscosity affects the leak down rate. Hydraulic lifters or hydraulic lash adjusters (HLA) with established leak paths will result in unsatisfactory leak down rates. For example, highly viscous oil will cause the leak down to go slow.

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

e/c, where e is its total energy