I suspect there has been a lot written on this topic, but the debate in my
family has reached fevered pitch and I'm looking to this forum for a
deciding vote. I have a 1999 SAAB 9-3SE. Scheduled maintenance calls for an
oil change every 10k miles. I don't live in a high sand/dust/useage area and
think that if SAAB says every 10k for a change, that is good for me. I'm
getting various opinions including changing every 2k. What is your opinion?
Is 10k OK???
in article email@example.com, HSB at firstname.lastname@example.org
wrote on 03/07/2005 00:09:
I'm not sure of the engine denotation of the SE in your part of the world,
but unless it's a turbo then somewhere between 8,000 and 10,000 miles is
okay. On a turbo, I would change more frequently. There has been discussion
recently that more a more urban use car should be changed more frequently.
I have a C900 turbo and find that my oil is dirty enough to warrant a change
about every 3,500 to 4,000 miles. I can tell when it's definitely due for a
change when the temperature gauge settles a little higher than the desired
one third into the green. I suppose it's a case of changing when the car
wants a change :)
Var tog vδgen vδgen?
SAAB : Nothing on earth comes close
Please note that Saab USA in their letter to saab owners upping the
sluge-failure warranty to 200,000 miles state 5000 miles..less in
congested stop/start conditions.
I use Saab oil and filter every 4000 miles. An engine change is a major
It's more dependent on engine hours, if you drive mostly highway and use a
quality filter than you should be ok with 10k intervals. If you drive mostly
around town or the car has a turbo then change it every 4-5k. It's cheap
You don't say where you're posting from.
US drivers may be be more likely to use lousy plain mineral oil. That *will*
require frequent changing if you love your engine.
If you're using synthetic, the service interval is perfectly fine. I trust
you're not a sad bastard who uses the car to do 400 metre trips rather than
waliking ? That makes a big difference -esp to the engines with the 'breather
btw - stuff posted here suggests that *oil filter* changes on a slightly more
regular basis will actually make the oil itself perform better !
Seeing that a filter costs next to nothing.... you may wish to change that at
5km intervals and simply top-up the oil.
...and you know this to be true how?
No, Graham, what you say is total BS. US drivers are *not* more likely
to use mineral oil on a car that specifies in the owners manual to use
full synthetic. Yes, there are bonehead penny pinchers on both sides of
the Atlantic that may try to get by on the cheap, but please refrain
from generalizing about things in the US since you quite obviously don't
have any real experience here.
No, once again you are wrong. Wrong as could be. 10,000 miles is only
an appropriate change interval if all you ever drive is highway miles.
But under stop and go, short trips or any of the other myriad of reasons
that would qualify as "severe duty" the change intervals are reduced
This engine has a small crankcase capacity. Only a bit more than 4 US
quarts as I recall. It is cheap insurance to long engine life to change
the oil with full synthetic at 5k mile intervals *unless* you are using
the car for long highway trips exclusively.
The filter costs ~ 5 bucks and you'll have to replace almost a quart of
oil. I can buy Mobil 1 fully synthetic oil for $4 a quart. I would not
waste my time and money replacing just the filter and adding new oil to
old just to save $12. Do the whole oil change for ~ $21-25 every 5k
miles or so and you will never be plagued by engine sludge woes.
Not just Saab turbos. I still drive a 1982 245 with a turbo. It gets a
new Volvo filter and Mobil1 every 5,000 miles. My 1993 C900 turbo gets
the same treatment - I want to keep on the road for another 15 years or
So what exactly is " quality motor oil " ?
Are you saying that Jiffy Lube will use synthetic if you bring them a Saab ?
So.... Why is it that there is this constant debate on the topic ? I've not
single european poster claim that oil changes above recommended service interval
*needed* when using synthetic oil.
You might care to 'treat' your car to more frequent intervals sure - no trouble
Once again this so-called 'stop-go' thing seems to be a US phenomenon.
God Almighty - US quarts ! We're in the 21st century now. Care to talk litres ?
There's nothing *wrong* with changing oil more frequently if you like. I was
interested to see if the idea of regular filter changing had some support. It
some sense technically. My total cost of a oil and filter change vs filter only
very different to the figures you mention.
If you want to do the 10k mile interval you must use a synthetic, like
Saab Turbo Oil or Mobil 1 (my personal favorite)
However, there is much popularity of 9-5's and 9-3's coming in with
seized motors or other problems relating to oil sludging.
This is wide throughout the auto industry today. Toyota is having even
more trouble on their motors, sludging is an automotive black plague
of the 21st century.
Why? Likely a mix of under-spec oils, and most importantly, overly
optimistic oil change intervals that are only suitable in "perfect
conditions". Which don't exist.
What I would do on your 9-5 is change the oil approximately every 7
500miles, to maybe 8 500 tops, and use a synthetic like Mobil 1 or
equivalent (though I would NOT use Castrol Syntec).
If I noticed "black" oil, change it immediately.
This should keep your motor trouble free.
However, people that change their oil (even crap oil) at 3 000 miles
always have beautiful nice clean engines when the car is junked,
usually due to the car rusting away. So it is your choice. How long do
you want to have her on the road? More money now, or more money later.
Oh, 9-3 sorry.
AND most importantly! Change the oil filtre every time you change oil.
And do not use a crap filtre. A FRAM filtre is garbage. Treat them
like radioactive waste. Their orange garbage has no reason to be near
any piece of internal-combustion engines.
I like Saab OEM filtres, as they look cool. However, I would stick to
these filtres, in order of pricing (quality should be more or less
I use AC/Delco for the most part, a quality product. Generally, the
AC/Delco filtres "Made in England" are the same as the OEM Saab
filtres. As well, Mann filtres are made in the same plant. Some
AC/Delcos now are coming from the USA, but I wouldn't worry about
Fram filters are well known to be trash, they lack a backflow prevention
valve and filter poorly, generally considered the worst filter on the
market. Lots of references out there, this is one of the first links I came
up with http://www.scuderiaciriani.com/rx7/oil_filter_study /.
A dozen years ago, one of the guys in the Milwaukee Saab Club took a
bandsaw to a half-dozen brands of oil filters. The fram most definately
did have a backflow prevention valve, at least at that time.
Interesting. So, cost-savings vs. reputation. I guess it pays or they
wouldn't have changed.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.