Mobil 1

[ShakeandBake]

Hi all,
Bought a 98 Cobra last week and want to change the oil since Im not sure when it was done last. My question is if its ok to run Mobil 1 Synthetic oil even if conventional oil was used before? Car has 52,000 miles on it. Thanks in advance!

-Chris

 

[[email protected]]

not a problem. that's what i run.

jp

 

[stang976]

really i heard your not supposed to run synthetic after regular oil has been used??

 

[Uncle Meat]

really i heard your not supposed to run synthetic after regular oil has been used??

That's an Urban Legend. You can switch to synthetic anytime after break-in.

U.M.

 

[[email protected]]

never heard that before. most guys i know with cobras switch to synthetic after break in. none of them, including myself, have had any problems and all of us spend a lot of time flogging our cars at the track and strip. do you have any idea why you shouldn't switch to synthetic?

jp

 

[Dark Knight GT]

That's an Urban Legend. You can switch to synthetic anytime after break-in.

U.M.

I switched to Mobil 1 at 18k miles and I'm approaching 31k miles now and no problems whatsoever. Up to that point, I had been using Motorcraft 5w-20 synthetic blend.

 

[ShakeandBake]

Alright good, thanks guys for your help.

-Chris

 

[97kobra]

You can even mix the two oils together your not going to hurt anything. I use royal purple. Its cheaper than mobil one.

 

[91_4ourBanger]

but after you run synthetic, you cant go back to conventional.

 

[Uncle Meat]

but after you run synthetic, you cant go back to conventional.

Really? Please enlighten us as to why this is...

U.M.

 

[stang976]

yea tell us...i'll take notes

 

[CobraCruiser]

Run the Mobil 1. You will have no problems. My '99 has never seen anything but Mobil 1. My '03 started out on Royal Purple, went to Penzoil synth, but I have switched to Mobil 1. Royal Purple isn't available in Toledo that I can find and Mobil 1 is at every parts store. The RP was good stuff, though.

Almost everything that you hear about when to add and when you can't add and mileage concerns are hogwash. Add the synth, your engine will thank you for it.

 

[stang976]

SOUNDS GOOD TO ME! if this guy puts it in an '03 Cobra then I see no problem in switching. see you guys at the auto part store