oil for a 1997 Boxster

[danyl55]

Any recommendations out there for type of oil? (weight,brand?)seems like there must be something better than Mobil-1 nowadays.

[clickman]

If you do a Search you will find MANY discussions on oils.

I and many others have decided to swap to Castrol Syntec, due to the lessening in quality of the Mobil over the years.

Syntec 10W-40 is the preferred weight. Oil change period is also super important, as the recommended intervals are thought to be ridiculously long. IIRC correctly 8000 miles was the recommended distance for that weight, but my memory might fail me there. Your Search should answer that. Here in Canada we can't get 10W-40, so I'm using 5W-40 and have to change it every 5000 miles.

I'm a bit anal about these things, and I wanted to do the conversion to Castrol from Mobil the right way, so on the advice of experts I did a flush using Valvoline VR1 Racing 20W-50.

[SeanZ4]

I too made the switch from Mobile to Castrol Syntec 5w-40. I didn't do a flush though??? I did find a great year end deal at Advance Auto Parts for $4.99/qt. It was the cheapest around I could find anyway. What do you gain by doing a flush with the Valvoline 20w-50?

sean

[clickman]

Changing oil type question

[Frank M]

I wouldn't be concerned with having synthetic oil going 10,000 miles before changing it.
Since new, I currently have a VW diesel with 273,000 miles and the engine has never been apart, it burns no oil between 10,000 mile changes (per VW recommendation) with 5w-40 Mobil synthetic.

However it is imperative that synthetic be changed yearly or at the specified interval.

It has been posted on other forums that changing the oil to frequently is not good. Some say the oil takes 3-5000 miles to reach it full potential. Seems to make sense.

[JFP in PA]

Originally Posted by Frank M

I wouldn't be concerned with having synthetic oil going 10,000 miles before changing it.

You should be...................

[JTP]

Originally Posted by Frank M

I wouldn't be concerned with having synthetic oil going 10,000 miles before changing it.
Since new, I currently have a VW diesel with 273,000 miles and the engine has never been apart, it burns no oil between 10,000 mile changes (per VW recommendation) with 5w-40 Mobil synthetic.

However it is imperative that synthetic be changed yearly or at the specified interval.

It has been posted on other forums that changing the oil to frequently is not good. Some say the oil takes 3-5000 miles to reach it full potential. Seems to make sense.

I have to disagree here. Following the manufacturer's (Porsche) change interval here is a very bad idea and 10,000 miles is twice the recommended mileage for Boxsters. Also your VW TDI is a very different machine than the M96. You can't compare them at all.
And wouldn't the oil have its full potential when it's new, not when t has 5000 miles?

[clickman]

Originally Posted by Frank M

It has been posted on other forums that changing the oil too frequently is not good. Some say the oil takes 3-5000 miles to reach it full potential. Seems to make sense.

Methinks we have a new troll in our midst. At least my little pea brain sure can't see how that makes any sense at all.

[Adam]

Originally Posted by danyl55

Any recommendations out there for type of oil? (weight,brand?)seems like there must be something better than Mobil-1 nowadays.

Porsche recommends every 15,000 miles or every 2 years (whatever comes first) for the M96. You can change it as often as you desire however. Use 0w40. Mobil1 is fine, or any other full synthetic.