How important is it to use premium gasoline in a Volkswagen? - VW Forum :: Volkswagen Forum
VW Forum VW Forum

» Auto Insurance
» Featured Product
Wheel & Tire Center

Go Back   VW Forum :: Volkswagen Forum > Volkswagen Models > General Volkswagen Discussion

General Volkswagen Discussion This discussion area is for any general discussions related specifically to Volkswagen.

VwForum.com is the premier Volkswagen Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 07-17-2009, 10:43 AM
Junior Member
Points: 159, Level: 3 Points: 159, Level: 3 Points: 159, Level: 3
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: May 2009
Posts: 5
Default How important is it to use premium gasoline in a Volkswagen?

I have a Volkswagen Passat and was wondering how important it is to use premium gas in the tank. If I buy regular, is it severely bad for the transmission? Why?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-18-2009, 05:28 PM
JdavB's Avatar
Junior Member
Points: 981, Level: 16 Points: 981, Level: 16 Points: 981, Level: 16
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Mar 2009
Location: Calgary, Alberta
Posts: 100
Default

It will not damage your car if it is new enough, because newer cars are able to correct for the lower octane. Which car do you have?

You'll have reduced performance, and worse gas mileage because the car is going to reduce compression and whatnot.

Essentially it's trying to avoid engine knock due to Regular gas (87 octane) not being able to handle pressure as well as higher octane gas. It's more likely to detonate under pressure, which is bad for the engine.

In older cars, it would cause some serious damage if you used too low of an octane for too long. The newer ones can compensate for it though. But you end up paying for it with worse gas mileage, and a sluggish car.
__________________
1999 Golf GL 2.0 8v
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-21-2009, 12:52 PM
Junior Member
Points: 6, Level: 1 Points: 6, Level: 1 Points: 6, Level: 1
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Jul 2009
Posts: 2
Default

Is that true for the Turbo models? i have heard some conflicting stories (i was taught turbo runs premium), and more so which gas station i should get gas. Marathon is what i keep hearing, anything to that?
I hear there is a 89?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-21-2009, 06:12 PM
JdavB's Avatar
Junior Member
Points: 981, Level: 16 Points: 981, Level: 16 Points: 981, Level: 16
Activity: 0% Activity: 0% Activity: 0%
 
Join Date: Mar 2009
Location: Calgary, Alberta
Posts: 100
Default

Depends on where you are. If I go to a chain gas station, they have 87 89 and 91

If I go to the independent one near my house, I get 87 or 91.

Turbo's almost always need premium, or at least mid-grade. A turbo works by compressing the air that enters the cylinder. This also increases pressure on the gas vapor, making it more likely to detonate or knock.

As far as I know the car can still adapt to a lower octane, but gas mileage and performance will suffer dramatically.

It should just be listed on your gas cap which octane is required. There will be a string of letters with an octane rating somewhere in it.
__________________
1999 Golf GL 2.0 8v
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

  VW Forum :: Volkswagen Forum > Volkswagen Models > General Volkswagen Discussion

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the VW Forum :: Volkswagen Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
gasoline mixing with oil mizter_2 MK2 16 04-27-2006 11:41 AM
gasoline smell in car dub 2.0 MK4 7 06-14-2005 06:35 AM
Premium gasoline??? ckj2005 General Volkswagen Discussion 23 01-27-2005 10:05 AM
gasoline motoman358 General Volkswagen Discussion 26 01-26-2004 12:46 PM
Premium Or No? OmegaHack MK4 8 01-02-2004 06:23 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 03:19 PM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
VWforum.com is a Volkswagen/VW Forum and enthusiast site and is not associated with VW/Volkswagen in any way.