another dumb oil question...

[DEADLYSVT03]

I know we have been over this a thousand times but.....I'm at my 1500 miles mark and am going for my second oil change...in a few weeks i'll be making a long trip doing about 700-1000 miles....is it wise to stay with the mineral 5w-20 until about 5000 miles or is it ok to now go with the Mobil 1 5w-30 synthetic....i read another thread that said to wait for higher mileage before switching...any suggestions....thanks


'03 silver cobra coupe
mac cat back...awesome sound
K&N filter
MGW shifter
UPR billet interior accesories
UPR engine dress ups
SVT grill emblem
Bullet gas cover
SVT door sills
black vinyl cobra inserts

future mods to include but not limited to:
mac cai
diablo chip
intake
etc....
love this car....and so does my 17 yr old....:shrug:

 

[lethal]

I used to think otherwise (I was one of the ones waiting until ~5K to switch) and I have spoken to many, many people about it -- many board members and my mechanic. It's fine to go to synthetic @ 1000-1500 miles. This is my opinion and I think I have spoken to 12+ people about it. They all agree... stock oil (5w-20) for the break in and then go to Mobil 1 (5W-30).

 

[Cobra'03]

Lethals friends are right - the reasons are that oil rings are much lower pressure now, and the cylinder bore tolerances tighter - this allows the rings to seat by 500-800 miles, so 1500 is a good rule of thumb. I concur that 5w30 or 0w30 are the way to go.

 

[lethal]

Originally posted by Cobra'03
Lethals friends are right - the reasons are that oil rings are much lower pressure now, and the cylinder bore tolerances tighter - this allows the rings to seat by 500-800 miles, so 1500 is a good rule of thumb. I concur that 5w30 or 0w30 are the way to go.

... and you were the final decision maker for me Cobra'03. Since you were a lubeologist (porn?) you restated with complete fact behind it everything they told me.

Kudos to you.