Oil Type?, what type is best Options

[Praying_Mantis]

i haven't changed my oil since i bought my car a while ago so i think i'd better give it a service. Just wondering what the best type to use is ie. synthetic, semi synthetic or a good quality non synthetic? cheers

[Supersprynt]

How many miles have put on the car since you bought it? Thats a scary.

How many miles are on the car? For higher mileage cars I'd recommend a semi- to full synthetic, 10W-30 is the average. If its cold maybe a 5w-30 or maybe even 5w-20.

[southwest2118]

For higher mileage cars I'd recommend a semi- to full synthetic, 10W-30 is the average.

cars switching to synthetic at higher mileage is more likely for a leak to pop up.

[Bitter]

For higher mileage cars I'd recommend a semi- to full synthetic, 10W-30 is the average.

cars switching to synthetic at higher mileage is more likely for a leak to pop up.

false, its just a myth. i switched to syn at 115k and my leaky valve seals went away after i switched.

if you get a leak after switching to syn you were going to get a leak anyways, wether you switched or not.

[jgreening]

For higher mileage cars I'd recommend a semi- to full synthetic, 10W-30 is the average.

cars switching to synthetic at higher mileage is more likely for a leak to pop up.

false, its just a myth. i switched to syn at 115k and my leaky valve seals went away after i switched.

if you get a leak after switching to syn you were going to get a leak anyways, wether you switched or not.

You got any proof its a myth? I have been told this by some VERY reputable people and believe it to be the case.