I have a 2006 GT that just made 100k in miles. I'm trying to decide what type, brand of oil and if i should use a additive like slick 50 or Lucas. Any info would help.

THANKS!!!

 

I like Lucas, but what have you used up to this point?

 

I just got it from a dealer with 87K on it, (I know, SHAME on me!) 1st oil change

 

Hopefully the previous owner(s) were kind to the car and did proper maintenance. I work as a grease monkey in my father's shop and man, lately it's ridiculous the condition I've seen oil in.

Maybe high mile specific oils? Valvoline Max Life and Castrol High Mileage come to mind.

 

I don't use anything other than AMSOIL or Royal Purple but that is purely my preference.. Do you need to spend that extra money on it? No.. If you can though then why not..

 

Since you don't know the history of what oil was used, I'd start off by using a 5W-20 synthetic blend. Check for leaks and check the oil level on the dipstick fairly frequently. If there are no issues, stick with what you're using. If you have an issue, then you might want to switch to something else, depending on what the issue is. I don't see any reason to use oil designed for high mileage cars or to use an additive just because the car has 100k miles on it.

 

You shouldn't need ANY additives at only 100k miles. I typically put close to or over 200,000 miles on my vehicles and I never used an additive. Any decent brand oil should not require additives.

 

I've heard the same thing as Nuke says. I have never run additives in my oil, and run my cars upwards of 200k miles too. A good baseline is to go with the 5W-20 Motorcraft (about $4 per quart) and follow what Art161 said to do.

I personally use Royal Purple 5W-20 in my Stang, and Mobile 1 15W-50 in my old Porsche. Unless you live someplace like Arizona, you won't want to use the heavier oil in the Stang. Keep with the 5W-20.

 

Providing you're not depleting the oil's protective packages (at which time you should be changing the oil anyway in lieu of adding anything; additives cannot replenish ALL of those protective qualities added by the oil manufacturer), no additives should be needed unless you have some sort of mechanical problem and you intend to "mask" it with an additive instead of making the proper repairs.

 

you don't need additives