Porsche 996 Oil leak question
Porsche 996 Oil leak question
Author
Discussion

lebouch

Original Poster:

36 posts

179 months

Tuesday 6th December 2011
quotequote all
So... I'm looking at another 996. This one has had a complete (and certified) engine rebuild at Autofarm within the last 20k. Total mileage is now around 100k. All the history etc checks out well.
Two questions..

Should a 99MY 966 use ANY oil on a regular basis, bearing in mind the above rebuild. The owner says it uses a 'cupful' once in a while.

Also, I've hopefully attached a pic of the engine underside. Should the oil evident there worry me, again bearing in mind the above?

I'm not trying to circumvent a PPI - just looking for a heads-up.

Thanks so much.

bqf

2,290 posts

202 months

Tuesday 6th December 2011
quotequote all
Thats 2x 996s with c100k miles you've looked at - is there any reason why you're going for these high-milers?

On a messageboard it's hard not to sound patronising - so I apologise for this in advance, but a Boxster is 90% of the fun of a 911 and they can be had much more cheaply with fewer miles.

100k+ I think you're into dangerous territory costs-wise - not just from an engine perspective either...

lebouch

Original Poster:

36 posts

179 months

Tuesday 6th December 2011
quotequote all
Hi - thanks for the reply. We did consider the Boxsters but didn't want a convertible especially and did want the rear seats of the 911.
AFAIK the Boxsters have the same engine as the 966 so we're back in imploding engine worry territory. I thought this one with the Autofarm rebuild would be a better bet...

I was under the impression that 100k was nothing to these cars?

6C4GTS

5,186 posts

209 months

Tuesday 6th December 2011
quotequote all
To answer the question according to the book its not unusual for a 996 to use a ml a mile - most don't but they can. So a cupful (400ml) between London and Edinburgh.

Soovy

35,829 posts

302 months

Tuesday 6th December 2011
quotequote all
lebouch said:
Hi - thanks for the reply. We did consider the Boxsters but didn't want a convertible especially and did want the rear seats of the 911.
AFAIK the Boxsters have the same engine as the 966 so we're back in imploding engine worry territory. I thought this one with the Autofarm rebuild would be a better bet...

I was under the impression that 100k was nothing to these cars?
Mine was bought at 25k miles and I ran it to 100k. It was utterly knackered when I sold it. Suspension, brakes all shot.


6C4GTS

5,186 posts

209 months

Tuesday 6th December 2011
quotequote all
Soovy said:
lebouch said:
Hi - thanks for the reply. We did consider the Boxsters but didn't want a convertible especially and did want the rear seats of the 911.
AFAIK the Boxsters have the same engine as the 966 so we're back in imploding engine worry territory. I thought this one with the Autofarm rebuild would be a better bet...

I was under the impression that 100k was nothing to these cars?
Mine was bought at 25k miles and I ran it to 100k. It was utterly knackered when I sold it. Suspension, brakes all shot.
75K miles on a set of dics and pads isn't bad!

Soovy said:
Bought for £38,000 in January 2005 at 29,000 miles. Sold for £16,500 at 94,500 miles.

Bought from OPC East London through Approved Used Porsche scheme. No regrets at all, but has taken a hammering on value recently, especially it seems when you try to trade in..... Oddly the dealers reckon prices for their cars are on the up......

Goes like hell, extremely reliable save for some issues resolved under the Porsche warranty free of charge without any complaints. Sadly Porsche have been utter nobbers and decided that my car won't qualify for a renewal any more, so balls to them. I'll be buying something else next time, they can shove it.

At least I can now enjoy making some changes to the car, like the gloss black wheels and rorty exhaust.

Still makes me smile and think that I am a very lucky fellow every time I drive it. Has been all over Europe and has taken good care of me and my family.

A life enhancing experience.
Edited by 6C4GTS on Tuesday 6th December 14:36

Soovy

35,829 posts

302 months

Tuesday 6th December 2011
quotequote all
6C4GTS said:
Soovy said:
lebouch said:
Hi - thanks for the reply. We did consider the Boxsters but didn't want a convertible especially and did want the rear seats of the 911.
AFAIK the Boxsters have the same engine as the 966 so we're back in imploding engine worry territory. I thought this one with the Autofarm rebuild would be a better bet...

I was under the impression that 100k was nothing to these cars?
Mine was bought at 25k miles and I ran it to 100k. It was utterly knackered when I sold it. Suspension, brakes all shot.
75K miles on a set of dics and pads isn't bad!

Soovy said:
Bought for £38,000 in January 2005 at 29,000 miles. Sold for £16,500 at 94,500 miles.

Bought from OPC East London through Approved Used Porsche scheme. No regrets at all, but has taken a hammering on value recently, especially it seems when you try to trade in..... Oddly the dealers reckon prices for their cars are on the up......

Goes like hell, extremely reliable save for some issues resolved under the Porsche warranty free of charge without any complaints. Sadly Porsche have been utter nobbers and decided that my car won't qualify for a renewal any more, so balls to them. I'll be buying something else next time, they can shove it.

At least I can now enjoy making some changes to the car, like the gloss black wheels and rorty exhaust.

Still makes me smile and think that I am a very lucky fellow every time I drive it. Has been all over Europe and has taken good care of me and my family.

A life enhancing experience.
Edited by 6C4GTS on Tuesday 6th December 14:36
Fair comment, but at the time I wrote this I was trying to shift it!! It was WRUNG out when I sold it!

monthefish

20,467 posts

262 months

Tuesday 6th December 2011
quotequote all
I don't know why people on here get hung up on mileage in isolation.

Car A has 70,000 miles but has had an owner like Soovy and has been poorly maintained and has had nothing replaced.

Car B has 100,000 miles, has a fastidious owner who has all suspension components replaced, etc etc, religious/extensive servicing.

Which is the better car?

monthefish

20,467 posts

262 months

Tuesday 6th December 2011
quotequote all
bqf said:
100k+ I think you're into dangerous territory costs-wise - not just from an engine perspective either...
Why, exactly?

lebouch

Original Poster:

36 posts

179 months

Tuesday 6th December 2011
quotequote all
Some replies to think about....

Any views on the pic?

6C4GTS

5,186 posts

209 months

Tuesday 6th December 2011
quotequote all
lebouch said:
Some replies to think about....

Any views on the pic?
Seen worse on a 25K mile 997!

lebouch

Original Poster:

36 posts

179 months

Tuesday 6th December 2011
quotequote all
LOL. That's kinda what I thought :-)

Soovy

35,829 posts

302 months

Tuesday 6th December 2011
quotequote all
monthefish said:
I don't know why people on here get hung up on mileage in isolation.

Car A has 70,000 miles but has had an owner like Soovy and has been poorly maintained and has had nothing replaced.

Car B has 100,000 miles, has a fastidious owner who has all suspension components replaced, etc etc, religious/extensive servicing.

Which is the better car?
yikes

How DARE you!!


It was serviced early every time, at OPC. Admittedly I ran it into the grounf so far as brakes/suspension goes.

996ttalot

1,931 posts

206 months

Tuesday 6th December 2011
quotequote all
lebouch said:
Some replies to think about....

Any views on the pic?
The normal approach would be to clean off the area and see over the next 200 miles or so how much returns. Little bit more difficult if you are buying it but then presumably you would have some sort of warranty?

thegoose

8,077 posts

241 months

Tuesday 6th December 2011
quotequote all
Soovy said:
yikes

How DARE you!!


It was serviced early every time, at OPC. Admittedly I ran it into the ground so far as brakes/suspension goes.
So for the sake of brand new sports suspension kit from Porsche (springs, dampers and anti-roll bars) @ circa £500 and brakes which you should have done ages earlier anyway it would have been a good serviceable car for the next owner. Apart from it being a Tip......

lebouch

Original Poster:

36 posts

179 months

Tuesday 6th December 2011
quotequote all
996ttalot said:
The normal approach would be to clean off the area and see over the next 200 miles or so how much returns. Little bit more difficult if you are buying it but then presumably you would have some sort of warranty?
Well, it's a private sale so no warranty there. Oil pressure seems fine although does drop when idling - normal?

river_rat

740 posts

234 months

Tuesday 6th December 2011
quotequote all
Yes

old No 1

362 posts

269 months

Tuesday 6th December 2011
quotequote all
thegoose said:
So for the sake of brand new sports suspension kit from Porsche (springs, dampers and anti-roll bars) @ circa £500 and brakes which you should have done ages earlier anyway it would have been a good serviceable car for the next owner. Apart from it being a Tip......
Erh mine went in for a new sport kit to CG at £650 ish but came out £3.4k with all the top mounts, bushes, arms, labour to cut arms off etc setting up and stuff so it might be 'only this' and 'only that' but in reality its costing a bit more!
Granted I could have gone to any garage cos in effect its just a car and anyone could change dampers but Chris knows what 'needs' doing and how to make them handle so it got done right first time

Rockster

1,515 posts

191 months

Thursday 8th December 2011
quotequote all
lebouch said:
Well, it's a private sale so no warranty there. Oil pressure seems fine although does drop when idling - normal?
What does the oil pressure drop to?

I do not have the specs for the 996 but the oil pressure hot (90C) at 5K should be 5 bar.

At idle I've seen around 1.7 bar. At no time should the engine oil warning light come on (and you have to make sure this bulb works when you turn the key on and before you start the engine, along with all the other warning lights!) when the engine is idling.

As for oil consumption, engines use oil. The usage varies. A 'cup every once in awhile' is sort of vague.

But you can get an idea of the engine's oil consumption by having the seller take you on test ride and then back at the starting point you take the car over teh same route as a driver. Among other things you check the rear view mirror for any signs of oil smoke leaving a stop, or when up shifting. If you can arrange it, coast the car in gear with the engine operating under closed throttle then when the car's speed has slowed and the engine rpms are around 1500 or so, push the accelerater down pretty hard. Not only should the engine pull smoothly and strongly but it should not emit any visible oil smoke.

If you see no oil smoke -- and it helps if you do this with the sun behind the car and down low, either in the AM or later in the day -- the chances are good (but not 100%) the engine's oil consumption will be acceptable.

But there is still the chance it might still use a considerable amount of oil. Worst case is it might use 1 liter every 600 or so miles. Some owners, a few owners, report their engines use this much oil when driven normally and yet do not report seeing any oil smoke when the engine is running.

Get that oil leak source id'd and get an accurate estimate of its cost to put right.

Sincerely,

Rockster.

lebouch

Original Poster:

36 posts

179 months

Thursday 8th December 2011
quotequote all
Thanks for taking the trouble to post that - that's really useful.