Jut curious, do you guys run synthetic oil in all of your vehicles?
Yes. Even my new lawn mower... I also run RP two cycle synthetic oil in my weed trimmer and my leaf blower.
5w30bought a used flex for the family vehicle. It suggests 5w-20. Should i run synthetic 5w-30 or stick with the 20.
5w30
30. Always 30.
Because the engine "ticks" more with 5W20. At least mine does. Not so with 5W30 or 10W30.Why?:dw::shrug:
Because thicker oil and higher oil pressure always equals better protection?
Because it doesn't.
A high quality 5W-20, in an engine designed for it, will make more power and get better fuel economy than an equivalent 5W-30, even one from the same company.