E46 Fanatics Forum banner
  • Hey everyone! Enter your ride HERE to be a part of October's Ride of the Month Challenge!
1 - 20 of 35 Posts

·
Registered
Joined
·
73 Posts
Discussion Starter · #1 ·
Hey all, the manual says only put premium.. but cmon is it gonna make that big of a deal to put 89 in a 330?? I know in an M3 you would have to... what do you put in yours? Any problems with 89??
 

·
Registered
Joined
·
203 Posts
My salesman told me that it doesn't matter, but I always go by what the manufacturer says, so only premium for my baby.
 

·
Banned
Joined
·
2,680 Posts
slikk66 said:
Hey all, the manual says only put premium.. but cmon is it gonna make that big of a deal to put 89 in a 330?? I know in an M3 you would have to... what do you put in yours? Any problems with 89??
You can put any kinda gas in your car even 87, but I would follow what manufacture recommend.
 

·
Mod Squad
Joined
·
9,629 Posts
You tryin' to save a buck or something? Gas cost to much for ya? Drive less! I mean these are $40K cars, if the manual says use premium then use it. What's the big deal :dunno: I'm not trying to be an a$$, but dude spend a little more at the pump, and make your BMW happy :thumbup:
 

·
name's PHIL
Joined
·
5,946 Posts
just put premium, u'll be more comfortable, knowing your biach is drinking the best:thumbup: :D
 

·
Registered
Joined
·
46 Posts
Yeah, but if you have an old E30, I guess that wouldn't hurt it. But an M3, give it what it needss!!!!! pure power!
 

·
TheOnlyConstantIsChange
Joined
·
4,180 Posts
Its your car, if you want decreased performance that will never allow teh car to work to its full potential. Sure then go ahead :rolleyes:
 

·
Banned
Joined
·
1,770 Posts
slikk66 said:
Hey all, the manual says only put premium.. but cmon is it gonna make that big of a deal to put 89 in a 330?? I know in an M3 you would have to... what do you put in yours? Any problems with 89??
:rolleyes: :rolleyes:
 

·
bored.
Joined
·
884 Posts
according to my manual u can. supposdly our cars have an "automatic knock sensor" or somethin like that. ur car will perform "worst" but it will not damage the engine (so it says). i would jus make sure to fill up with the lower grade octane once the tank is as empty as possible, im jus not comfertable with mixing gas.

--soheil
 

·
Registered
Joined
·
185 Posts
soheilm3 said:
according to my manual u can. supposdly our cars have an "automatic knock sensor" or somethin like that. ur car will perform "worst" but it will not damage the engine (so it says). i would jus make sure to fill up with the lower grade octane once the tank is as empty as possible, im jus not comfertable with mixing gas.

--soheil
...decreases fuel economy, increases emissions, causes the engine to run hotter, and reduces the longevity of both the engine itself and the catalytic converter.
http://www.omegamotors.com/enjoy/gasoline/gasoline_06.html

Is it really worth it?
 

·
Registered
Joined
·
910 Posts
premium burns better/cleaner. if you use octane 87 for a long time, it's does no harm to your engine, but to your fuel pump/filter. performance will definitely decrease. if you have go with the octane 87, fill up your tank before it goes below 1/4. they said it's very dirty at the bottom of the tank for octane 87.

ii don't recommend you to save $2 or so on each visit at the gas station. it's your choice though :tongue:
 

·
Registered
Joined
·
73 Posts
Discussion Starter · #16 ·
ok, was just a simple question.. i havent filled it up since i got the car only 3 days old.. jus checking... i dont know what was in it from the dealership for all i know was 87.. but just askin i will put premium in it =)
 

·
Member
Joined
·
917 Posts
I would not recommend driving your car with 89 cause you are risking the engine running "lean" and potentially causing issues with your pump. Probably nothing will happen but worse performance in the short-term. Why put less? I know it's cheaper but you pay the price for lower performance and increased risk of issues in the long-term.
 

·
Registered
Joined
·
3 Posts
see ...

February 17, 2003

Opinion:
Don't waste your money on Premium gas
by Phil Bailey

Last week, regular gasoline hit a price of 88 cents a litre in Montreal. This is the equivalent of $2.35 a gallon in the USA. When I drove up to the regular, low priced gas pump to fill the tank of my 1986 VW Golf winter car, there was a Ford Excursion down the row pumping in premium fuel. After the Monster Truck drove away, I asked the attendant how much the owner had paid for gas. $77 he said!

My reaction was not of sympathy for the Excursion owner, who can afford these prices after paying nearly $60,000 for his truck. No, what struck me instantly was that my little Golf would have cost me that kind of money for a fill up in Europe. That made my credit card amount of $35 easier to swallow.

However, next up at the premium pump was a 1988 Pontiac 6000 with a 2.8 litre V6 engine, a sagging right rear spring and a hood held shut with electrical wire.

Why this driver was buying premium fuel might have been a mystery, if I had not already asked that question many times, only to find two standard answers. First, "I need to have a car that starts well in Winter" and secondly "I get better gas mileage". Unfortunately, neither of these statements can be verified in real life.

They are delusions.

Sure, if you own a Porsche Turbo or a Ferrari Enzo, you may need a high grade of fuel, but 90% of the cars I see using "high test" are wasting their money.

First, the only thing that can guarantee a clean start on a cold morning is a first class tune-up and an engine with reasonable compression. Secondly, there are more BTU's in a pound of regular gas than in a premium grade - more in diesel fuel, more in home heating oil and so on down the scale to number 6 marine bunker fuel. The more you refine crude oil, the less energy it contains. The world could save 12% of it's reserves by using nothing more refined than diesel oil. "Better mileage" is the one thing you won't get.

Mostly, oil companies charge a 15% premium for their highest grades. A 15% increase in my fuel economy would make me very happy, but even then, I would only be breaking even. If you can find your owner's manual, read what grade of fuel is recommended by the manufacturer, you may be very surprised. Even then, your very sophisticated, on board engine management computer, has a device connected to it that is called a knock sensor. In effect, this is a little microphone that senses when an engine may be suffering from pre-ignition and will make adjustments to the engine accordingly.

So try a tank full of regular gas. If it works well, why not use it and save some money?

If your older car develops ping, let a garage take a look at doing an internal carbon clean. A cheap and easy process that cleans carbon from the combustion chambers.

Someone is always trying to organise a "buy no gas" protest and I don't doubt there's another one coming to my e-mail address very soon. However, a complete and total boycott of premium fuel will make the point much more clearly and effectively.

Personally, I think our eleven governments are getting away with a major deceit here, because every time the cost of fuel rises they take a bigger and bigger cut. If you take a look at the "pie plate" sticker on the gas pumps these days that shows who is profiting the most from gas prices, the two levels of government are by far the biggest beneficiaries. On average, the gas station owner may get 3 cents, if he is lucky.

Oh and by the way, if you want to start saving even more money, stop using all those additives in every fluid used in your car - many of them are not doing you any good either! Gas line anti-freeze in the winter is not a bad idea and an occasional injector cleaner may be of limited use, but if you're an additive junky, now is the time to kick your habit and start saving money on your total fuel costs.




--------------------------------------------------------------------------------

Montreal-based Phil Bailey is a mechanical engineer, garage owner, journalist and TV and radio personality who was a former rally driver and press relations officer for Mont Tremblant race track. He can be reached at [email protected]


© 1999-2003, CanadianDriver Communications Inc., all rights reserved
Disclaimer
 

·
Registered
Joined
·
808 Posts
you'll only save a $3 - $5 per full tank by doing so and that's probably every week and half if you refill that often...that's less than a buck a day if you think about it. are you that broke?
 

·
Loves cookies
Joined
·
1,537 Posts
Premium Gas only

The sticker on the inside of the fuel filler lid says that don't run anything lower than 91 octane which in most states is considered premium fuel. Anybody that tells you that premium does not make a difference does not know what they are talking about. I have read many articles in magazines and books about premium fuel vs. regular. Even though there is a difference in performance the other advantage of running premium fuel is that the engine remains clean inside. I have a buddy that works at a german tune up shop and one day he showed me the inside of an engine from a 1990 325is that always ran on premium. The engine looked like it was new, the cylinder walls and the valves were spotless, i could not believe that premium fuel would make that much of a difference. Ever since that day I will not run anything lower than premium in my bmw or any other car. Remember why risk your engine for a dollar and some change? Not worth it, remember these are $40k cars. Regular is for a civic, mid grade is for a mustang, and premium is for the best performance engines in the world like the ones in our bmws.

**Why risk your engine for a dollar and some change**
 
1 - 20 of 35 Posts
Top