Aircraft general knowledge related question
Regarding piston engines
α)Why with high oil temperature we have also an "oil pressure drop" ? This is because the viscosity changes or other reason ? The opposite: low oil pressure leads to high oil T happens because the oil does not circulate fast enough-"stagnates"- so it experiences greater T .Is that correct ?
β)Does the low oil quantity always leads to low oil pressure ?? Also what can be the causes for low oil pressure ?
γ)Does the oil temperature increase have with the oil pressure decrease a fixed relation regarding which happens ALWAYS first and which happens always second ?
Many thanks in advance for your time.