i have a 95 sc4 with 155k ...my last oil change was synthetic..no problems...and i am about to do a seafoam...and im not paying a shop to every change my oil again..tooo expensive...soo what type of oil does the sc400 use and what do u recommend is the best?and the filter also...thanx

 

5w30.. some use 10w30. I use a synthetic blend in mine. I believe the filter is a 3614.

 

Pennzoil Ultra 5w30 with a Wix filter 51348

 

royal purple 5w-30 ftw

 

I use Mobil1 synthetic and their filter. M1-102 I think. Local parts store does a deal for 5qts and filter for $29.95

 

10w40 mobile 1 full synthic, i use a moblie 1 filter also, my car has 298k

 

Royal Purp 5w30 with a K&N filter last time because it was on sale.

 

I use Castrol GTX 5W30 full synthetic, and a wix filter! 166K on a 1992SC400.

 

Truth be told, it makes far less difference what brand oil you use than it does what regularity you change your oil with. Any reasonably priced oil that meets the manufacturer's SAE spec and is suited for the climate you live in is fine, so long as you change it routinely. In general, synthetics can last 1-1/2 to 2+ times longer than regular oils, so calculate your intervals accordingly. Use a better quality filter (ie. NOT Fram!) and you'll be fine. There are endless pissing matches on the internet comparing one brand vs. another; at the end of the day, very few car owner keep their car long enough to realize the significance of ANY advantages of the very best oils over the cheapest that meets the required spec.

$.02


That being said, I generally use whatever Costco has on sale or Mobil-1 synthetic (depending on which car) and a Wix/Napa Gold filter

 

mMm Royal Purple!

 

i picked up 5qt of mobile1 high millage and mo1-102

 

http://www.youtube.com/watch?v=V6E0QrY1XCE

 

I would only use royal purple or Mobil 1, you can't beat the quality and reputation, they are that well known, and talked about for a reason. Don't be cheap and get the **** stuff, because youll change it frequently, spend the cash.

 

royal purple or mobile one, they are the best, and k&n filter