What Gas to use in a 2009 BMW 328xi ?

[neiln]

Most of you might know, that I just got CPO 2009 BMW 328xi.

I want to know what kind of gas I need to use in this beast?

I always get my gas at Costco for my old faithful Honda. Can I stick to Costco? If yes, which grade gasoline shall I use? I dont know the grade numbers, but there are only 2 grades at Costco.

Thanks,

[morzada]

Look on the hing of the filler door flap. It'll tell you the minimum octane rating. It is 91 on my 2007 328xit. Its probably the same for yours.

[Pyewacket69]

Most of you might know, that I just got CPO 2009 BMW 328xi.

I want to know what kind of gas I need to use in this beast?

I always get my gas at Costco for my old faithful Honda. Can I stick to Costco? If yes, which grade gasoline shall I use? I dont know the grade numbers, but there are only 2 grades at Costco.

Thanks,

Open the filler door and look at the label. It will give you the minimum octane requirements for fuel. Use a fuel with an octane equal to or greater than that on the filler door label.

Many suggest using top tier gas, and certainly it's a safe bet, but it isn't the only acceptable fuel. Most importantly, you want to use fuel fom a station that has a good level of "turnover", so that the risk of fuel contamination by moisture, etc. is minimized.

You can spend a lifetime reading articles that run "soup to nuts" on what brand, type and formulations to use. My suggestion is to follow the instructions in your owners manual.

[95325i]

I have used Costco gas with out a issue, I always just use premium (93 in my location) when ever I fill up. You can use mid-grade as well.

[Kredithai]

Use Shell 93 on the first few fill-ups. The added detergent should clean out some of the deposits on the injectors/intake valves.

[floydr]

...I want to know what kind of gas I need to use in this beast?

I always get my gas at Costco for my old faithful Honda. Can I stick to Costco? If yes, which grade gasoline shall I use? I dont know the grade numbers, but there are only 2 grades at Costco.

We've run our cars on Costco for years. Including our E34 525i, my old 330xi, my son's 335i, my wife's Boxster and many Toyotas. Never had a fuel-related problem. Use the Premium. You car will run on regular, but not at full power or with best mileage.

I don't fill my current BMW from Costco: they don't carry diesel.

[luckydawg003]

Use Premium, 91 or higher. I use Walmart 93 octane for my area. Cheapest gas around.

[dubious1]

I have used Costco gas with out a issue, I always just use premium (93 in my location) when ever I fill up. You can use mid-grade as well.

By mid grade do you mean 89? I always thought that was a no-no. 2008 328xi E93 here.

[bmw42ofus]

91 or higher should be what's required. verify with your manual, however, this is one area I wouldn't go cheap.

[floydr]

By mid grade do you mean 89? I always thought that was a no-no. 2008 328xi E93 here.

Look folks, it's a 328 N52 engine. It will RUN on regular, but get best mileage and power on premium. Premium is RECOMMENDED but not required.

The 335i N54/N55 is different and requires at least 89.

On P.203 of the 2011 sedan/wagon manual:
---------------------------
Super Premium Gasoline/AKI 91
This gasoline is highly recommended.
However, you may also use gasoline with less
AKI. The minimum AKI Rating is:
> 323i, 328i/xDrive: 87
> 335i/xDrive: 89.
If you use gasoline with this minimum AKI Rating,
the engine may produce knocking sounds
when starting at high outside temperatures.
This has no effect on the engine life.
----------------------

RTFM

[Craig B]

Also try to find ethanol free fuel

[geost]

I mostly use 76 because it's near work. If not I swing by Shell or Chevron, and once in a while Costco (Costco is furthest from me). I use Premium no matter which gas station I go to always.

[bh684]

You should be safe using midgrade, as long as you are not getting pinging and knocking.

[Dacaperz]

I've been using Chevron or Shell premium gas on my 2009 328i if out of town, Since I live close to a military base the gas is cheaper with the high grade and reliable too, if your gonna keep it for a while, I would suggest going the high grade, you paid a lot of money to buy the bimmer but that's what I think

[Luis costa]

Omg guys just look at the manual !!!!

[sseedubbin]

shell 93 premium

[djg21]

I prefer chevron or texaco. Gas is gas. The difference is in the additives and detergents. I like the Chevron Techron additive. But since neither Chevron or Texaco (both use Techron) is in my area now, I stick to Mobile or Sunoco and buy Techron from my local autoparts store and use it every 2500 miles.

I also have my 335xi tuned and run a mix of 93 octane and e85 that gives me around 30% ethanol. Most gas is 10% ethanol, and this isn't an issue


Sent from my iPhone using Tapatalk; typos courtesy of autocorrect.

[MrStic]

I only use 91 octane from Sunoco.

[MrStic]

I only use 91 octane from Sunoco.