Mobil 1 15w 50

[jcpr996]

hello everyone

Looks like Mobil 1 15w 50 has been discontinued and Mobil 1 15w50 Extended Performance is the new substitute which comes with a yellow cap. Is this oil ok to use, just want to make real sure.

TIA..

[1999Porsche911]

hello everyone

Looks like Mobil 1 15w 50 has been discontinued and Mobil 1 15w50 Extended Performance is the new substitute which comes with a yellow cap. Is this oil ok to use, just want to make real sure.

TIA..

Either is fine in warmer climates or you can use Castrol.

[Tool Pants]

I used the original 15W-50 red cap for 7 years in my Box.

When it was discontinued I investigated the EP gold cap line, including the 15W-50 EP.

Just bought 9 quarts of 15W-50 EP for my 60k oil change that I need to do.

Guess that if I put it in I will not go to Porsche heaven.

[geza]

Mobil 1 15W50 EP exceeds the API classification required in the Porsche owners manual - you are good to go.

Used it in our 911 for 2 years - all is well.

[Ubermensch]

Mobil 1 15W50 EP exceeds the API classification required in the Porsche owners manual - you are good to go.

Used it in our 911 for 2 years - all is well.

Did you modify your drain interval length, or keep it the same when you moved to EP?

[geza]

We live in Chicago - and the car only gets driven from March through November.

We do about 3000 miles a year - so I change the oil in the fall before it gets stored, and I change it again at the beginning of summer - so two oil changes a year.

This is excessive - but I don't care. It is very cheap insurance.

[eastriver]

We live in Chicago - and the car only gets driven from March through November.

We do about 3000 miles a year - so I change the oil in the fall before it gets stored, and I change it again at the beginning of summer - so two oil changes a year.

This is excessive - but I don't care. It is very cheap insurance.

can you provide your oil pressure readings:

1. car warming up.

2. warmed up idling.

3. warmed up 2K RPM

4. warmed up 3K RPM

5. warmed up 4K RPM

6. warmed up 5K RPM

thank you very much.

[geza]

Hot at idle is around 2 - 3 bar - anything above that in the rev range is around 5 bar.........

Stone cold it goes straight to 5 bar at idle.

Edited May 24, 2006 by geza

[eastriver]

thank you.

tool pant, in general, high oil pressure is good thing or bad thing?

[Tool Pants]

Us 986 Box owners never got an oil pressure gauge. So, we do not worry about it like the 996 owners.

I bought my non-Porsche oil filter today. Made by Wix.

I will do a future report on the Wix aftermarket filter in the Box section.

[eastriver]

Hot at idle is around 2 - 3 bar - anything above that in the rev range is around 5 bar.........

Stone cold it goes straight to 5 bar at idle.

do u see any diff. when out side temp. changes?

ie. winter vs summer, assuming you fill u car with 15W50 for both winter and summer.

thanks again

[geza]

No difference........