Hi scotty! My car has been only a weekend car and i can estimate every 6 mos oil change i can only clock about 3k km should i switch to 10w30 mineral oil coz its cheaper than 5w30 fully synthetic? Im planning to change it every 6 mos?
No leave the synthetic it's better and if the came with synthetic it will mess up the engine if you don't use synthetic
Scotty always advises to NOT switch up grades, nor switch from conventional to synthetic, as doing either can lead unwittingly to causing leaks.
Check out Amazon basics synthetic, it's very good oil at a decent price.