What to do if wife filled Boxster with 87 instead of Premium
07-26-2007, 11:43 AM
#16
I would siphon the gas out and an put it in your beater car, think I saw one of those siphons on my last trip to the evil Wal-Mart. Then fill the car with Chevron 93 if its localy available. My car is 7 years old now and it only saw anything south of 93 on one ocassion and that was maybe a gallon of the middle stuff.
07-26-2007, 01:19 PM
#17
Burning Brakes
Do nothing special - use the car as normal and be happy that Porsche had already considered this possibility.
The official line is that you can't expect full power from low grade fuel but the knock sensors will ensure nothing bad happens.
The official line is that you can't expect full power from low grade fuel but the knock sensors will ensure nothing bad happens.
08-08-2007, 11:21 AM
#19
Why worry - you have a aknock sensor
It may run with less power, or hunt around, and have poorer economy, but no damage should come of it. Just drive it.
Yes, probably best to avoid very high rpm or heavy throttle uphill in case the sensor is slow.....
Grant
Yes, probably best to avoid very high rpm or heavy throttle uphill in case the sensor is slow.....
Grant
08-11-2007, 05:58 PM
#21
Rennlist Member
When Porsche was testing the 996 turbo in the US, they drove it 100,000 miles on 87 octane and did not change the oil. Upon tear down the engine was fine. This was reported at a tech session at the Porsche Parade a few years ago by a factory rep.
03-07-2018, 04:26 PM
#22
4th Gear
Join Date: Mar 2018
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
So my wife borrowed the Boxster and accidently filled up with regular (87 octane) gas instead of the recommended Premium (91 oct). 
What is the impact to the engine from this? (never mind impact to marriage -look for us on Dr Phil next week..)
Does it require emptying the tank before driving, or will the pinging just be a nuisance and no damage done? Car only for highway driving (mostly flat).
Lennart
What is the impact to the engine from this? (never mind impact to marriage -look for us on Dr Phil next week..)
Does it require emptying the tank before driving, or will the pinging just be a nuisance and no damage done? Car only for highway driving (mostly flat).
Lennart
03-07-2018, 04:38 PM
#23
Rennlist Member
89 Oct in Boxster
On second thought, Tell her she ruined it and need to get a new one, preferably one you have been craving since the week after you got the Boxster.....
03-07-2018, 04:45 PM
#24
4th Gear
Join Date: Mar 2018
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
03-07-2018, 04:48 PM
#25
Rennlist Member
Excellent,
though you'll miss handling
