Help, I mistakenly put regular gas in my Mini.
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#7
Join Date: Aug 2002
Location: Moved from Leesburg, VA to Oceanside, CA Nov. 2003
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Hamms311 (09-23-2019)
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#8
WOW!!!
I don't think I've even seen regular in years. Then again, I haven't really looked for it. I think you will be OK this time. The problem, from what I'v eread, is that the lead in regular gas affects the rings and can cause opremature deterioration of internal mtal parts (which is most of the internal parts) of your engine. Of course the lower octain levels will affect the performance as well. Like someone said, put some octain boost in the tank. Also I would burn through half the tank then fill with the highest octain level gas I could find.
You could drain the tank, but that can get pretty messy. Full tank is 8lbs per gal roughly. It can be pretty heavy.
I don't think I've even seen regular in years. Then again, I haven't really looked for it. I think you will be OK this time. The problem, from what I'v eread, is that the lead in regular gas affects the rings and can cause opremature deterioration of internal mtal parts (which is most of the internal parts) of your engine. Of course the lower octain levels will affect the performance as well. Like someone said, put some octain boost in the tank. Also I would burn through half the tank then fill with the highest octain level gas I could find.
You could drain the tank, but that can get pretty messy. Full tank is 8lbs per gal roughly. It can be pretty heavy.
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Regular gas which is leaded is not available any more in the US. It was replaced by various grades of unleaded gas of which the basic 87 octane is regular unleaded. No matter which grade of gasoline you pick your mini will still work but the high compression engines of the minis especially the Cooper S really will last longer and do better, perform better (noticible in the S) and get better gas mileage, run cleaner etc.
Most of the threads I have read in the past at mini2.com and at MCO agree that if possible you should be using premium gas and not regular unleaded for all minis.
I am keeping my Cooper S for at least 10 years and probably more so I am using only premium gas with each fill up although I have run my car with all grades of gas and it worked OK. My best performance and gas mileage (about 2-3 mpg better) come from premium.
Most of the threads I have read in the past at mini2.com and at MCO agree that if possible you should be using premium gas and not regular unleaded for all minis.
I am keeping my Cooper S for at least 10 years and probably more so I am using only premium gas with each fill up although I have run my car with all grades of gas and it worked OK. My best performance and gas mileage (about 2-3 mpg better) come from premium.
#14
>>Hmmm, Donna! I plan to fill Wanda's tank with REGULAR UNLEADED next time, to see if there is any appreciable performance difference! If I get no pinging, I'm making the switch! It seems that the computer will make the necessary adjustments and I'll save some much-needed dough on my groovy roadtrip! Tee hee!
You will not get any pinging. You will also not get the same gas milage. The difference in mpg and the difference in price between regular and premium may even cost you money.
You will not get any pinging. You will also not get the same gas milage. The difference in mpg and the difference in price between regular and premium may even cost you money.
#15
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>>
>>You will not get any pinging. You will also not get the same gas milage. The difference in mpg and the difference in price between regular and premium may even cost you money.
Interesting thought although we are getting the same mileage as everyone else seems to be :smile:
Chow!
Donna
>>You will not get any pinging. You will also not get the same gas milage. The difference in mpg and the difference in price between regular and premium may even cost you money.
Interesting thought although we are getting the same mileage as everyone else seems to be :smile:
Chow!
Donna
#16
IT'S GOING TO EXPLODE!!!!!!!!!!!!!!!!!!!!!!
Just Kidding.... how old it is? You should add some cleaner to the next fill up! Or go for a 100+ Octane to clean her out. A lower grade gas is exactly as it's called, lower grade. I use 89 in ALL my rentals! hahahah
I believe at around every 20K you should get your fuel filter checked and cleaned anyway.
GOOD LUCK!
Just Kidding.... how old it is? You should add some cleaner to the next fill up! Or go for a 100+ Octane to clean her out. A lower grade gas is exactly as it's called, lower grade. I use 89 in ALL my rentals! hahahah
I believe at around every 20K you should get your fuel filter checked and cleaned anyway.
GOOD LUCK!
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>>>>
>>>>You will not get any pinging. You will also not get the same gas milage. The difference in mpg and the difference in price between regular and premium may even cost you money.
>>
>>Interesting thought although we are getting the same mileage as everyone else seems to be :smile:
>>
>>
>>Chow!
>>
>>
>>Donna
Very interesting... I still don't understand why the Mini requires high octane fuel. It makes perfect sense in the S, as it has forced induction.
Some 1.6 liter Honda engines make more peak power on 87 octane than the 1.6 liter Mini engine makes on 91...
>>>>You will not get any pinging. You will also not get the same gas milage. The difference in mpg and the difference in price between regular and premium may even cost you money.
>>
>>Interesting thought although we are getting the same mileage as everyone else seems to be :smile:
>>
>>
>>Chow!
>>
>>
>>Donna
Very interesting... I still don't understand why the Mini requires high octane fuel. It makes perfect sense in the S, as it has forced induction.
Some 1.6 liter Honda engines make more peak power on 87 octane than the 1.6 liter Mini engine makes on 91...
#22
You can bet the military still uses it too, with their asbestos brakepads and all...
__________________________________________________ ___________________________
Welcome to the new Army, all of our tactical vehicles use a fuel called JP-8 a very refined diesel fuel. We did away with the Gas about ten years ago.
__________________________________________________ ___________________________
Welcome to the new Army, all of our tactical vehicles use a fuel called JP-8 a very refined diesel fuel. We did away with the Gas about ten years ago.
#23
>>I still don't understand why the Mini requires high octane fuel.
>>It makes perfect sense in the S, as it has forced induction.
The MINI Cooper has a higher compression engine than the MCS
and that's why it requires higher-octane gas.
The MCS requires it because of the supercharger of course.
Higher-octane gas doesn't burn nearly as well as lower-octane
gas, so you don't have to worry about it going "BANG" in the
cyinder before the sparkplug gets it going.
>>It makes perfect sense in the S, as it has forced induction.
The MINI Cooper has a higher compression engine than the MCS
and that's why it requires higher-octane gas.
The MCS requires it because of the supercharger of course.
Higher-octane gas doesn't burn nearly as well as lower-octane
gas, so you don't have to worry about it going "BANG" in the
cyinder before the sparkplug gets it going.
#24
>>You can bet the military still uses it too, with their asbestos brakepads and all...
>>__________________________________________ ___________________________________
>>
>>Welcome to the new Army, all of our tactical vehicles use a fuel called JP-8 a very refined diesel fuel. We did away with the Gas about ten years ago.
>>
Gas (mogas) has not been completely removed from the MIlitary. Some items, such as the M-2 Burner use mogas. The army is switching to 1 fuel (with the exception of the other JPs, I think jet fuel is JP-4, might be JP-5), but due to the expense of it all, a lot of units are still required to use mogas. By the way, the M-2 Burner is a leaky gas tank that gets pressurised and, via a controlled leak, set on fire. This is then used to heat and prepare food. Yes, these can be expected to leak and catch fire... anywho... I pick up my mini from the shop in the morning, some turd decided to pull a hit and run on me...if anybody cares to look...
>>__________________________________________ ___________________________________
>>
>>Welcome to the new Army, all of our tactical vehicles use a fuel called JP-8 a very refined diesel fuel. We did away with the Gas about ten years ago.
>>
Gas (mogas) has not been completely removed from the MIlitary. Some items, such as the M-2 Burner use mogas. The army is switching to 1 fuel (with the exception of the other JPs, I think jet fuel is JP-4, might be JP-5), but due to the expense of it all, a lot of units are still required to use mogas. By the way, the M-2 Burner is a leaky gas tank that gets pressurised and, via a controlled leak, set on fire. This is then used to heat and prepare food. Yes, these can be expected to leak and catch fire... anywho... I pick up my mini from the shop in the morning, some turd decided to pull a hit and run on me...if anybody cares to look...