Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Recommended Posts

Hello all,

I would like to bring up oil consumption again. My car is guzzling 1 qt. approx.

750 miles. I have 10500 miles and it has been doing this since I purchased the car

new in 2003. I change the oil & filter every 5000 miles and only use Mobil 1 0/40.

I followed the 2000 mile break-in rule. (which was hard)

The next step is taking it to the dealer. Any clue? Is this normal?

What will they do? :eek:

Link to comment
Share on other sites

Any leak underneathe? Get the car up on ramps to check bc leak doesn't always drip to floor. Compression test should be done if no leak.

Try to keep the oil in there for 10k mi. Sometimes new engine have a hard time breaking in w oil that's too new.

Try thicker oil, esp in summer, 15-50 wt Mobil 1.

Link to comment
Share on other sites

Any leak underneathe? Get the car up on ramps to check bc leak doesn't always drip to floor. Compression test should be done if no leak.

Try to keep the oil in there for 10k mi. Sometimes new engine have a hard time breaking in w oil that's too new.

Try thicker oil, esp in summer, 15-50 wt Mobil 1.

No leaks, I clean the under-carriage while changing the oil.

Someone else mentioned that the synthetic oil slows the wear-in time.

My 930 used a qt. approx. every 1500 miles. (but that car had over 500hp)

My Cayenne never needs oil between changes.

Link to comment
Share on other sites

Hello all,

I would like to bring up oil consumption again. My car is guzzling 1 qt. approx.

750 miles. I have 10500 miles and it has been doing this since I purchased the car

new in 2003. I change the oil & filter every 5000 miles and only use Mobil 1 0/40.

I followed the 2000 mile break-in rule. (which was hard)

The next step is taking it to the dealer. Any clue? Is this normal?

What will they do? :eek:

My experience on a 2004 40th anniversary 911 is as follows:

Changed the factory Mobil 1 0W40 at 1000 miles. Have had 2 changes since then with Mobil 1 15W50. Oil consumption seemed a little high until we just hit the 3000 mile mark - then it (oil consumption) basically stopped - or has settled down dramatically. Followed the break in procedure faithfully as well. Our car has the X51 power kit - and in the Porsche TSB, it stated that the engine does not develop full horsepower until it reaches approximately 6500 miles. This suggests these engines - X51 power kit or not - are fairly tight for some time, which means long lasting if they are looked after.

You probably won't get a true indication of oil consumption until you get to around 10,000 miles. At that point, one quart per 1000 miles is within factory guidelines anyway.......

As long as you are not getting blue smoke - all should be fine.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.