Purchased my first Porsche (C4 Cab) last August thru local Porsche dealership. I knew previous owner as well. Oil was changed in Spring 2012 by dealer, use Mobil 1 synth. I found car in June and I got late August due to issues with top that dealer handled before purchase. This resulted in total of about 1,500 miles on oil before I put away for storage in November.

Question: I am getting out of storage next month to begin projects. Should I change oil anyway?

Thanks, RayB

 

they say every year for synth regardless of mileage.

 

You will get several opinions on this subject. In my opinion, it seems like a waste of good oil with only 1,500 miles on it.

 

For the sake of a hundred bucks, i would change it.

 

I thought maybe it might. Have same opinions with motorcycles enthusiasts. I think no brainer with fossil oil. I run that in my cycle so I change every year regardless. Filter every other if little mileage.

Run synthetic in truck, but mileage always dictates that changes.

Thanks for help everyone. Just looking for guidance on this one and importance for Porsche.

Next I will ask, sea foam vs. stabil... maybe.

 

Porsche dealer tells me every 2 years if low to medium miles in a year as long as it driven fairly regular to temp.

 

Send in a sample of your oil for testing .
If the report comes back and says your oil is fine , why change it ?

 

Condensation. If it has been driven just a few times and not brought up to temperature you could have as much as a quart + in your tank. There are several threads with people showing the amount of water that can accumulate over time. Isn't $120 max (10 qts @ $8 per, $15 for filter and washers, +/-) cheap insurance for a 964.... Just my opinion.

 

What would be causing this level of condensation? A quart+ of water is pretty substantial.

 

I suggest changing it every year regardless of mileage. I had 1 year old oil in my 964 that had been sitting alot when I moved to VA. The car failed emissions pretty badly, but with a change of the oil and 50-100 miles on the clock and it passed without issue. I'm not an oil or engine expert, so not sure exactly why, but my take is that the oil breaks down over time even if it is just sitting in the car.

-Skip

 

I hadn't given much thought to condensation in the oil.

It's really not about cost as I get concerned about waste and yet I also want to start out right. I don't want to risk anything now that I have my Porsche.

Thanks for all the input.

 

If your going to be doing occasional driving this winter, you could still get some condensation. I would wait until the warm weather, and change it then. The water settles to the bottom of the tank.When you change your oil,unscrew the drain plug slowly, the water will drain first.

 

I would change it... Cheap insurance, no science.

 

[QUOTE=ja78911sc;10194924] That "quart" of water will be turned into steam once the car is run hot hot . That steam will be run through the cylinders and out the tail pipe . Condensation damage is done when the motor isn't running . Water in a non running motor is bad , water inside a running motor isn't so much .
There is always some level of water inside a motor unless it is stored is a sealed dry container .
If you fear you might have a lot of water or if you just want to do a test , crack open the drain plugs a small amount and let the fluid drip into a clean clear jar . If water comes out let it drip until the water stops and the oil starts . when the oil starts dripping out catch a little bit of it and send it in for testing .

Did you by any chance read the oil test report from the truck that never had an oil change ?
https://docs.google.com/viewer?a=v&q...3T-LT46xc2OfqA

http://www.blackstone-labs.com/Newsl...m_medium=email

http://www.blackstone-labs.com/Newsl...m_medium=email

http://www.blackstone-labs.com/Newsl...m_medium=email


http://www.edmunds.com/car-care/stop...-your-oil.html
"The longest oil change interval is 20,000 miles, for all Porsches."
"The company's most advanced synthetic product (Mobil 1 Extended Performance) is guaranteed for 15,000 miles.
Today's longer oil change intervals are due to:
Improved "robustness" of today's oils, with their ability to protect engines from wear and heat and still deliver good fuel economy with low emissions
Tighter tolerances (the gap between metal moving parts) of modern engines"

 

Change it - oil is the lifeblood of a 964.

Marc