Sunoco Top Tier gas
Thread Starter
Heel & Toe
Joined: Jul 2021
Posts: 18
Likes: 3
From: Milton Pa
Sunoco Top Tier gas
Now that Sunoco is advertising as top tier, is anybody using it? I had the typical gas gauge to empty a few months back and I thought I resolved it with Exxon gas and Techtron additive. I started using Sunoco and my problem has reoccurred. Just asking to see if anyone else is having the same problem. '98 coupe
Race Director
Joined: Oct 2004
Posts: 12,861
Likes: 4,663
Now that Sunoco is advertising as top tier, is anybody using it? I had the typical gas gauge to empty a few months back and I thought I resolved it with Exxon gas and Techtron additive. I started using Sunoco and my problem has reoccurred. Just asking to see if anyone else is having the same problem. '98 coupe
)
Drifting
Joined: May 2008
Posts: 1,694
Likes: 490
From: Denver, NC
Now that Sunoco is advertising as top tier, is anybody using it? I had the typical gas gauge to empty a few months back and I thought I resolved it with Exxon gas and Techtron additive. I started using Sunoco and my problem has reoccurred. Just asking to see if anyone else is having the same problem. '98 coupe
Advanced
Joined: Nov 2021
Posts: 76
Likes: 20
From: Tucson, AZ.
No amount of techron helped mine. Finally removed the.passenger side fuel sending unit and cleaned the oxidizing and tarnished contacts and sweep contacts with very light wet dry sand paper and electric contact cleaner. Solved. Cheap fix considering the absurd price of a new unit if you can find one.
Le Mans Master
Joined: Jun 2004
Posts: 9,015
Likes: 331
From: Southeast Missouri
When the U.S. minimum additive performance standards were first established in 1995, many gasoline marketers reduced the concentration of detergent additive in market gasoline by up to 50%. As a result, many automakers experienced instances of deposit build up within engines leading to poor performance and sometimes engine damage, both resulting in dissatisfied customers. Techron is a patented fuel additive developed by Chevron Corporation. It contains a polyether amine-based detergent, which is purported to dissolve deposits in automotive engines and prevent them from building up. Chevron released Techron as an additive in 1981, and began including it in all of their gasoline products in 1995.
The TOP TIER™ Detergent Gasoline was first introduced in 2004 when a group of automakers recognized the need for a higher detergency gasoline standard than that required by regulation. Top Tier gasoline sponsors now include, but are not limited to such manufacturers as GM, Ford, Toyota, Honda, VW, BMW, Navistar, Audi, Mercedes-Benz, and others. The Top Tier program requires that all gasolines of all octanes sold by a Top Tier member must include a certain level of detergents. Techron is a patented additive developed by Chevron that meets the minimum standards of the program. Other detergents by other members may also be used so long as they meet the automobile manufacturers standards for the Top Tier program. Initially, auto manufacturers only recommended that their vehicles use a Top Tier fuel, however in recent years some such as Genesis have required the use of a Top Tier fuel in order to meet the requirements of their warranty program.
The TOP TIER™ Detergent Gasoline was first introduced in 2004 when a group of automakers recognized the need for a higher detergency gasoline standard than that required by regulation. Top Tier gasoline sponsors now include, but are not limited to such manufacturers as GM, Ford, Toyota, Honda, VW, BMW, Navistar, Audi, Mercedes-Benz, and others. The Top Tier program requires that all gasolines of all octanes sold by a Top Tier member must include a certain level of detergents. Techron is a patented additive developed by Chevron that meets the minimum standards of the program. Other detergents by other members may also be used so long as they meet the automobile manufacturers standards for the Top Tier program. Initially, auto manufacturers only recommended that their vehicles use a Top Tier fuel, however in recent years some such as Genesis have required the use of a Top Tier fuel in order to meet the requirements of their warranty program.
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Advanced
Joined: Jul 2018
Posts: 53
Likes: 2
From: TYLER,TX.
GREAT, I'AM NEW TO THE C5 ERA. I PURCHASED A 2000 COUPE MM-6spd COUPE BACK IN 2/24 W/109,990 MILES ON THE CLOCK. I'VE OWNED A NEW 89 C4 & 92 LT5 ZR1. NEVER HAD ANY FUEL LEVEL PROBS. I DID REMOVE THE PUMP ASSY ON THE '89 C4 TO REPLACE THE FP. WHEN THERE I DID CLEAN CONTACTS & THE SWEEP. (TO ME THE 97- EARLY 03 C5's SHOULD NOT HAVE THIS MAJOR & EXPENSIVE PROB). ALSO IS THERE A GOOD SITE THAT EXPLAINS THE REMOVAL OF THE (RT) PASSENGER SIDE FUEL LEVEL SENDING UNIT? HELP!!! "SAVE THE WAVE!!" BEST,C4ME@.
Melting Slicks
Joined: Sep 2021
Posts: 2,555
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Safety Car
Joined: Sep 2000
Posts: 3,571
Likes: 420
From: Taildragers rule! USA1
I only run non-ethanol in mine. A station near me sells 87.91, and 93 octane. It is "Top-Tier!"
https://www.cenex.com/
https://www.cenex.com/
Pro
Joined: Aug 2010
Posts: 622
Likes: 169
From: Montgomery Texas
When the U.S. minimum additive performance standards were first established in 1995, many gasoline marketers reduced the concentration of detergent additive in market gasoline by up to 50%. As a result, many automakers experienced instances of deposit build up within engines leading to poor performance and sometimes engine damage, both resulting in dissatisfied customers. Techron is a patented fuel additive developed by Chevron Corporation. It contains a polyether amine-based detergent, which is purported to dissolve deposits in automotive engines and prevent them from building up. Chevron released Techron as an additive in 1981, and began including it in all of their gasoline products in 1995.
The TOP TIER™ Detergent Gasoline was first introduced in 2004 when a group of automakers recognized the need for a higher detergency gasoline standard than that required by regulation. Top Tier gasoline sponsors now include, but are not limited to such manufacturers as GM, Ford, Toyota, Honda, VW, BMW, Navistar, Audi, Mercedes-Benz, and others. The Top Tier program requires that all gasolines of all octanes sold by a Top Tier member must include a certain level of detergents. Techron is a patented additive developed by Chevron that meets the minimum standards of the program. Other detergents by other members may also be used so long as they meet the automobile manufacturers standards for the Top Tier program. Initially, auto manufacturers only recommended that their vehicles use a Top Tier fuel, however in recent years some such as Genesis have required the use of a Top Tier fuel in order to meet the requirements of their warranty program.
The TOP TIER™ Detergent Gasoline was first introduced in 2004 when a group of automakers recognized the need for a higher detergency gasoline standard than that required by regulation. Top Tier gasoline sponsors now include, but are not limited to such manufacturers as GM, Ford, Toyota, Honda, VW, BMW, Navistar, Audi, Mercedes-Benz, and others. The Top Tier program requires that all gasolines of all octanes sold by a Top Tier member must include a certain level of detergents. Techron is a patented additive developed by Chevron that meets the minimum standards of the program. Other detergents by other members may also be used so long as they meet the automobile manufacturers standards for the Top Tier program. Initially, auto manufacturers only recommended that their vehicles use a Top Tier fuel, however in recent years some such as Genesis have required the use of a Top Tier fuel in order to meet the requirements of their warranty program.
Drifting
Joined: Sep 2017
Posts: 1,961
Likes: 693
From: Avon Lake OH
I only run non-ethanol in mine. A station near me sells 87.91, and 93 octane. It is "Top-Tier!"
https://www.cenex.com/
https://www.cenex.com/
https://www.pure-gas.org/
My two daily drivers are both flex fuel from the factory, so they don't care about ethanol content - plus I usually put a tank full of E85 in each during the summer time to help clean out any carbon deposits. The warmed over engine in the Corvette is tuned for 93 octane, so I try to keep her on a steady diet of Top Tier premium gasoline to help minimize the fuel gauge sending unit issues.