regular vs. premium gas - Mercedes CLA Forum
User Tag List

 
LinkBack Thread Tools
post #1 of 4 Old 12-31-2013, 07:46 PM Thread Starter
Member
 
Join Date: Aug 2013
Location: Rehoboth Beach, Delaware, USA
Posts: 35
(Thread Starter)
regular vs. premium gas

Is anyone using or tried regular grade gas instead of premium or mid grade? Do you see any mpg and/or performance difference?
bobthebeachbum is offline  
Enjoy this discussion? You might also enjoy ...
Thread Thread Starter Forum Replies Last Post
Wiil your replace OEM summer tires with A/S run flat or regular tires? NewMercOwner New 2014+ CLA General Discussion Forum 4 10-28-2013 02:29 PM
Did you order Multimedia package without Premium 1 but car was built with both? NewMercOwner New 2014+ CLA General Discussion Forum 1 10-22-2013 02:33 PM
CLA banned from sale in France for using old coolant gas ViceCity New 2014+ CLA General Discussion Forum 8 07-12-2013 05:31 PM
premium package worth the price? AMG4Matic New 2014+ CLA General Discussion Forum 14 04-11-2013 05:46 PM
Mercedes CLA Gas Mileage / MPG cordovan New 2014+ CLA General Discussion Forum 10 02-08-2013 11:24 PM

Sponsored Links
Advertisement
 
post #2 of 4 Old 12-31-2013, 08:30 PM
Senior Member
 
Tonyride's Avatar
 
Join Date: Apr 2013
Location: NJ
Posts: 927
I wouldn't use regular when the engine calls for premium (at least 91 octane). Any lower octane level can cause knocking (premature detonation).

Black CLA250 - Premium, Multimedia, Sport, Panorama roof, Bi-Xenon, Window Tinting (50%/35% Front/Rear), Carlsson C-Tronic.
Bridgestone Blizzak LM-60 RFT (Run Flats) mounted on 18x8 Anzio Turn Bright Silver wheels with TPMS sensors for winter driving.
Tonyride is offline  
post #3 of 4 Old 12-31-2013, 08:34 PM
Senior Member
 
Join Date: Sep 2013
Location: Pacific Northwest
Posts: 437
Be wary if you fill up at higher elevation and then drive to sea level. Octane rating is lower at elevation since knock is less likely at altitude, so you'll want to empty your tank along the way down so you can fill a fresh tank down low.
sleepyhead is offline  
Sponsored Links
Advertisement
 
post #4 of 4 Old 01-01-2014, 01:14 AM
Junior Member
 
Join Date: Nov 2013
Location: SoCal
Posts: 23
Quote:
Originally Posted by bobthebeachbum View Post
Is anyone using or tried regular grade gas instead of premium or mid grade? Do you see any mpg and/or performance difference?
Using a lower grade (less than 91) will also void out the Manufacturer's Warranty. With that being said, my dealer also told me that it's OK to use 87 and no problem at all, but since I own my car, I'll stick to 91 just to be safe.

Hau’oli Makahiki Hou Everyone!

CLA250/Polar Silver/Pano/Black MB-TEX/Aluminum Trim /Sport+P+MM+DAS Packages

Last edited by Rusty Shackleford; 01-01-2014 at 02:19 AM.
Rusty Shackleford is offline  
Sponsored Links
Advertisement
 
Reply

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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

 
For the best viewing experience please update your browser to Google Chrome