34 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHGot my car back from the mechanic and they filled my car with 5w-30, is this Ok?
Leading reported evidence
Use 0w40
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Got my car back from the mechanic and they filled my car with 5w-30, is this Ok?
Frequently discussed work
Clean container and save
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Personally I'd go back to the shop and advise them you expect them to replace with the factory specified oil, but if you drain the oil yourself, drain into a clean container and save for your other cars most of which specify 5w-30.
Got my car back from the mechanic and they filled my car with 5w-30, is this Ok?
Read full discussion summary
Leading evidence: 'Use 0w40' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean container and save' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Got my car back from the mechanic and they filled my car with 5w-30, is this Ok?
Use 9 quarts
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I use 9 quarts with filter change (exactly what Loren listed in the instruction).
Got my car back from the mechanic and they filled my car with 5w-30, is this Ok?
Clean container and save
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Personally I'd go back to the shop and advise them you expect them to replace with the factory specified oil, but if you drain the oil yourself, drain into a clean container and save for your other cars most of which specify 5w-30.
Got my car back from the mechanic and they filled my car with 5w-30, is this Ok?
Fill 8.5 quarts
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
I only had to fill 8.5 quarts, but have heard some people need to fill with about 10 quarts??
Got my car back from the mechanic and they filled my car with 5w-30, is this Ok?
Frequently discussed actions (10)
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Clean container and save
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Personally I'd go back to the shop and advise them you expect them to replace with the factory specified oil, but if you drain the oil yourself, drain into a clean container and save for your other cars most of which specify 5w-30.
Got my car back from the mechanic and they filled my car with 5w-30, is this Ok?
Coverage and how to read this overview
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
34 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T065735Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I just got my car back from the mechanic and they filled my car with 5w-30, is this OK? It is Castrol Syntec 5W-30, should I drain it? Should I have brought my own Mobil 1 0W-40 oil to the shop w/ me? Help, will I destroy my engine?
Nah, chill. This time of year, with these temps - no problem. If you're in extreme cold the 5w wouldn't flow as well as 0w. I think my 99 probably used 5w-40w. I don't think 0w-40 was made.
I have 4qts 5-40 mobil 1 from my 994,I now use 0-40 mobil i in my 996.Can I still use those 4qts of 5-40 as oil to add when I am low in the 996? Thanks
It's not the 5 vs 0 you should be worried about, it's the 30 vs 40 (or 50) that should be of concern. Do a search on oil weight and you'll learn more than you ever want to know about the great oil debate.
Agree with c4. 30 is too light. Plus Castrol Syntec 5w-30 is not Porsche approved but Castrol Syntec 5w-40 is. Note that the lastest from Porsche approved list are 0w-40 or 5w-40 from various brands.
Hope it helps.
- Ahsai
Sorry to say but I would drain and refill with 0w-40 if I were you. A lot of people favor 15w-50 saying that 0w-40 is like water (too thin), let alone 5w-30 (which is even thinner than 0w-40 when hot)!
- Ahsai
do i need to replace the oil filter as well? I would think not, since it is new...but its soaked w/ 10W30... or am OK to just drain the oil & refill w/ 0W40??
Personally I'd go back to the shop and advise them you expect them to replace with the factory specified oil, but if you drain the oil yourself, drain into a clean container and save for your other cars most of which specify 5w-30.
Any winter rating such as 5 or 10 with 30 weight should be reserved for use below 50 degrees F. If you are mostly above 50 F you should use a 40 weight with your choice of 0, 5, or possibly 10. Also if temps are really high a 50 may be be a choice. These recommendations are for a Syn oil. I would have the shop change it to the recommended oil if you are on good terms with them, if not do it yourself. Some times if you complain about the food and send it back, you know what the cooks do don't you?
Thank you all for your input! This kind of stuff drives me nuts! I live in Sunny Southern Cali. so temps will be above 65F in the daytime from now until next winter!
AND, i just called the mechanic & told him he added the wrong oil.. he asked why, and I said that the sticker they left on my windshield says 5W-30.. he says that the sticker is wrong & that they use 0W-40 on all P-cars 2002+... he said that his hands were dirty so someone else wrote the sticker for him (this shop services all euros so 5W-30 is also on tap)
Now, should I believe him??? Or just drain anyway for peace of mind? what would you do?
this is why when i go to my indy.
i bring my own oil. just for peace of mind.
i would change oil. too much risk.
try ask the guy to pay for the oil. or at least, half of the money.
where's 1999porsche?
he will tell u even "40" is no good, you need to get "50", such as mobilOne 15-50.
Seems too much risk. $60+ vs. suspicious oil for another 5k miles?
Plus if you drain the oil yourself, you will realize how easy to DIY and that will save you money in the future oil changes (and peace of mind).
I think unless you are there when the guy is pouring the actual oil you bring, not sure bringing your own oil is much safer. Someone absent minded may just forgot about your oil and fill it up with whatever they use. Or worse, they would just swap out your oil.
Just me 2cents.
- Ahsai
Haha ... excellent topic for the following news item. Posted by a co-worker.
"For those who go to those quick oil change places, you might want to check this out. I can�t believe how shady some people can be.
http://www.nbc4.tv/video/9152183/detail.html#
"
Its hard for me to imagine that you trusted the guy well enough to leave your car with him, yet now do not know whether to believe him on this.
One thing I would do is find a shop I can trust. Sooner or later you will need maintenance more serious than an oil change, and you will surely want someone in whom you have trust.
Only 3 people touch my car (1) The dealer for warranty required work (2) My local indy owned by our local past PCA chapter prez and been in business for over 30+ years only working on P-cars (3) Myself.
Ok, so I drained the oil & put Mobil 1 10W-40 in. I only had to fill 8.5 quarts, but have heard some people need to fill with about 10 quarts?? Then again my oil filter was already soaked w/ the 5W-30...
Or was it originally 0W-40 like the mech. said??? When I poured out the old suspect oil, it was very watery, so maybe it was 0W-40? Is there any way to tell? I am starting to think that the mech. was honest.. grrr.. can you tell the diff. between the two oils by touch? This oil felt thinner than the 5W-30 that I usually use... I think....
8.5 quarts sounds right without filter change. I use 9 quarts with filter change (exactly what Loren listed in the instruction). I really hope "10w-40" is a typo in your message....note that 10w-40 is NOT on the latest Porsche approved list. I thought you planed to put in 0w-40?
You could reuse the oil you drained on other cars if it's clean. I don't know a good way to tell the weight of the oil by feel. I heard you could send an oil sample ($20) to one of these oil labs and they will tell you how much metal is in your oil. Maybe they would tell you the weight too. I'm not sure.
- Ahsai
