16FoxBody

I was thinking about gonig with Mobil 1 5w-30 but just wanted to see what other people thought first

BCP

I prefer Kendall myself. I change the oil too often to willingly waste it on synthetics.

gsxrstang69

royal purple? i think its called lol ..exspensive ****
just go with mobil or a synthetic

92hatchLX

Dude do NOT go with Synthetics if you're motor has never had it in there before, you'll start getting oil leaks, especially if you have a tired motor. Just stay with a non-synthetic, I use the Valvoline High Mileage oil (for motors with over 75,000 miles) and it works great.

OnyxCobra

i buy the full synthetic supertech oil at walmart, its very cheap compared to other synthetic oils and it says it's a high mileage formula...

Edit: IIRC it's made by Pennzoil and Quakerstate.

PX429

valuecraft or coastal

FullAuto

I don't want to pay for Royal Purple so I run Mobil 1.

vristang

This seems to be a lingering myth from the early days of synthetics. It was an issue back in the day, but doesn't seem to be a problem now.
I swapped my stock 302 at 190,000 miles, with no leaks.

The BEST oil is CLEAN oil.
I used Mobil 1, because it is easy to find locally.
I used to use Redline, but only a couple of the local parts stores stock it.

Changing the oil at 5k miles with synthetic is acceptable in most cases. But it is still a good idea to change the filter at 3k miles.

jason