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Detached Member
Join Date: May 2003
Location: southern California
Posts: 26,964
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About 1 qt. per 1,500 miles. More if driven hard, like 1 every 1,200 miles
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Hugh |
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07-03-2009, 10:44 AM
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Habitual User
Join Date: Jul 2004
Location: Ventura, Ca
Posts: 490
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1/2 to 1 qt. down when I change the oil @ 4000 miles.
190,000 mi on the 3.0L.  Don
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 '80 911 Targa |
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07-03-2009, 11:59 AM
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Stop fronting.
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2002 C4S (36K miles on ODO): 1 quart per ~1K miles (but some of that is definitely leaking due to my RMS/IMS issue...)
1986 3.2 Targa (126K miles on ODO): 1 quart per ~800-1300 miles 1972 914 1.7 (145K miles on ODO): ditto 1972 911T Targa (118K miles on ODO): ????? (I would tell you if I could ever get the damn thing home from TRE)
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Chris Harrell '72 914 1.7 Saturn Yellow, '73 911T-RS Coupe Red |
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07-03-2009, 08:13 PM
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About every 1000-1500 miles. Getting a little stinky at traffic lights (10w-30).
-Todd
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86 Carrera Coupe (sold) 11 Nissan Leaf 03 Honda Civic Hybrid 91 ELECTRIC Kawasaki ZX-11 |
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07-03-2009, 08:26 PM
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Gary H 1978 911 SC
Join Date: Oct 2003
Location: Fort Worth Texas
Posts: 1,306
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78 3.0 In 7 years I never add any oil @ 3000 mile oil change.
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07-04-2009, 04:54 AM
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Registered
Join Date: Jan 2002
Location: Long Beach CA, the sewer by the sea.
Posts: 37,750
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Quote:
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07-04-2009, 08:26 AM
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Registered
Join Date: May 2007
Posts: 136
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None between changes. '86 3.2, 62K on the odo, Brad Penn 20-50
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I am become Bob, Destroyer of Boats. 1986 911 (The Little Red Rocket)... ...and a bunch of other cars/boats/planes that are sold, sunk or crashed. |
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07-04-2009, 08:37 AM
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Registered
Join Date: Dec 2008
Location: Palm Springs, CA
Posts: 319
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'72 doesn't leak a drop...someone said it may not be a real Porsche
 I wish it would because I think it's a bit overfilled. '69 leaks like a sieve!
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Tristan 1969 911t Sporto Sunroof, Turkey Green with all the Trimmings! 1974 914 2.0 - SOLD 1972 911t Targa - SOLD Last edited by tgittens; 07-10-2009 at 10:24 AM.. |
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07-10-2009, 10:22 AM
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My 78 Targa has 170K on it, leaks a little, no smoke at all, needs about 1qt of Mobil 1 every 600 to 800 miles.
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1150GSA, R100GS PD, R100CS, R75/5 SWB, R75/5 Vintage Racer, WR450, Zuma 125 1150RT Traded, RC51- Sold, KLR685 - Sold, 911SC - Sold, W650 Sold to Brother, CB1100F Traded, Traded 1100S BCR, R100RS Sold |
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07-10-2009, 10:32 AM
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R&D guy
Join Date: Sep 2007
Location: the border between the states of inebriation & confusion
Posts: 2,038
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I add when it needs it, but not in one quart increments. It probably works out to one quart every 2K - 3K miles, with more "topping off" required after driving in hot weather & heavy traffic.
I put in Brad Penn at the last oil change, about 1K miles ago, and it hasn't needed anymore so far. |
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07-10-2009, 12:53 PM
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Wash. State
Join Date: Jun 2006
Posts: 3,569
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I don't know. Never a quart, but a little now and then. I'll get back to you. Right now I'm busy looking for a blow off valve for that guy's Wife.......I feel helpful today!
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07-10-2009, 01:22 PM
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Stop fronting.
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All of my Porsches are super Porsches. I've never had to add a quart of oil to any of them, ever, even after driving hundreds of thousands of miles....
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Chris Harrell '72 914 1.7 Saturn Yellow, '73 911T-RS Coupe Red |
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07-13-2009, 05:05 PM
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Registered
Join Date: Mar 2007
Location: Atlanta, GA
Posts: 64
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Added a qt today, 1005 since I changed the oil. Using Brad Penn, 3.2 with 112k miles, all original engine, no top end. Not too bad I dont think!
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07-13-2009, 05:39 PM
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Registered
Join Date: Oct 2006
Location: Los Angeles
Posts: 510
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About a quart every 700-800 miles. I have 207K on the engine. Not sure whether a top-end has ever been done.
Has anyone switched to synthetic? I was reading an issue of Excellence recently (it was from'08) and it covered a talk given by a PCA technical director. He said that his 80s Carrera always burned 800 miles/quart, even when new. But after switching to Moblil 1 (I think) he stopped burning oil.
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1986 Targa 1968 MGB (2) |
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07-13-2009, 06:15 PM
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Now in 993 land ...
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Quote:
George |
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07-13-2009, 11:11 PM
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Get off my lawn!
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I just did 2,300 miles going to Parade in Colorado. There was a lot of high RPM driving in the mountains. Above 6,000 feet it feels like you are pulling a trailer. I have a 85 Carrera with 131,000 miles and I run Sweepco. I used almost two quarts. Last year on flat ground I went over 1,5000 miles per quart.
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Glen 49 Year member of the Porsche Club of America 1985 911 Carrera; 2017 Macan 1986 El Camino with Fuel Injected 350 Crate Engine My Motto: I will never be too old to have a happy childhood! |
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07-14-2009, 04:55 AM
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Registered
Join Date: Jun 2009
Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
Posts: 5,238
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One quart Mobil 1 15-50 per 700 miles. 90% freeway driving in our '86 3.2 with 103K miles.
No leaks. |
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07-14-2009, 06:06 AM
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Quote:
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Henri '87 Carrera coupe: Venetian blue |
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07-14-2009, 07:37 AM
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Registered
Join Date: May 2005
Location: Austin, TX
Posts: 909
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1 quart around 1000 miles. Mine is at 152K miles, leaks a tiny bit
 and sometimes smoke on startup.I hate to let the level drop, so I usually add a 1/2 quart at time. Which brings up the question, how low is too low? Jay
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2002 Boxster Speed Yellow |
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07-14-2009, 08:27 AM
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Wash. State
Join Date: Jun 2006
Posts: 3,569
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Quote: "Which brings up the question, how low is too low?"
I would say no lower than the bottom line on the stick, but then the thing holds a couple of well-dead Dinosaurs' worth! I keep it midway like most. |
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07-14-2009, 02:25 PM
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The Beast
NTRYLVL
1978 Porsche 911SC Targa 3.0
Carrera
1987 Porsche 911
