Top Tier Gasoline Brands - Page 2 - Fuelly Forums

Click here to see important news regarding the aCar App

Reply
 
Thread Tools Display Modes
 
Old 10-06-2016, 07:32 PM   #11
Registered Member
 
Join Date: Jun 2013
Posts: 148
Country: United States
Top tier gasoline is ONLY 100% gasoline(without ethanol), E0. My last 5 cars obtained 8%, 8%, 7%-8%, 7% & 5% better mpg, when switching from E10 to E0. All cars run smoother, quieter & with a trace more low rpm torque. 87 octane E0 gasoline uses 87 octane gasoline. Duh!!! 87 octane E10, using 10%, 114 octane ethanol, must balance the octane with...... drumroll please...... with 84 octane gasoline molecules. Therefore, if your car knocks using 87 octane E10, it is probably the 84 octane gasoline molecules which are knocking. Switching to 87 octane E0, raises gasoline molecule octane by 3 points over 87 octane E10.
__________________

litesong is offline   Reply With Quote
Old 10-08-2016, 08:38 AM   #12
Registered Member
 
Join Date: Aug 2016
Posts: 71
Country: Canada
Location: Surrey, British Columbia
I think that Top Tier relates more to the detergent in the fuel to keep fuel and emissions working to top efficiency and not the ethanol percentage.
Local Chevron station has 4 grades of gas / petrol and all are classified as top tier. 87, 89, 91 all with up to 10% ethanol and 94 octane with no ethanol. add about 5 points for conversion to European ratings.

A couple of cars ago I owned a SAAB and it was noted that in more than one article that ethanol drove it crazy delivering up to 25% poorer fuel economy. Ironically in the owners manual (not hear say) while premium was recommended it was OK to use regular for short drives. The car would deliver about 50 HP less but give better fuel economy, very different from most other cars.
__________________

BlueRover is offline   Reply With Quote
Old 10-12-2016, 04:56 AM   #13
Registered Member
 
Join Date: Nov 2007
Posts: 1,852
Country: United States
Location: north east PA
Yes, Top Tier just means the additive package meets some level above the government minimum. Nothing about the actual fuel itself, which can still have ethanol or be reformulated.
__________________

trollbait is offline   Reply With Quote
Reply

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 Off
Pingbacks are Off
Refbacks are Off


» Fuelly iOS Apps
Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 06:20 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.