Which Gas
02-12-2012, 05:58 PM
#44
Burning Brakes
In my opinion why wait until a problem arises. I prefer the proactive approach.................
Regards,
GSRANDY
02-12-2012, 06:04 PM
#45
Team Owner
In preventative measures. I do use that Chevron Techron gas addictive and Chevron gas in the Corvette only.Chevron used to sell a black bottle with gold print at their gas stations cost a bit but was suppose to remove engine deposits if I remember correctly
and clean out fuel injectors. It was sometime ago and I wonder if this products is still available?
02-12-2012, 06:31 PM
#46
Le Mans Master
From the Manual, yeah I read the manual(lol):
Fuel
Use of the recommended fuel is
an important part of the proper
maintenance of this vehicle. To help
keep the engine clean and maintain
optimum vehicle performance, we
recommend the use of gasoline
advertised as TOP TIER Detergent
Gasoline.
Look for the TOP TIER label on the
fuel pump to ensure gasoline meets
enhanced detergency standards
developed by auto companies. A list
of marketers providing TOP TIER
Detergent Gasoline can be found at
www.toptiergas.com.
The eighth digit of the Vehicle
Identification Number (VIN) shows
the code letter or number that
identifies the vehicle's engine.
The VIN is at the top left of the
instrument panel. See Vehicle
Identification Number (VIN) on
page 12‑1.
Recommended Fuel
If the vehicle has the 6.2L V8 engine
(VIN Code W), use premium
unleaded gasoline with a posted
octane rating of 91 or higher.
You can also use regular unleaded
gasoline rated at 87 octane or
higher, but the vehicle's acceleration
could be slightly reduced, and a
slight audible knocking noise,
commonly referred to as spark
knock, might be heard. If the octane
is less than 87, a heavy knocking
noise might be heard when driving.
If this occurs, use a gasoline rated
at 87 octane or higher as soon as
possible. Otherwise, you could
damage the engine. If heavy
knocking is heard when using
gasoline rated at 87 octane or
higher, the engine needs service.
If the vehicle has the 6.2L V8 engine
(VIN Code T) or the 7.0L V8 engine
(VIN Code E), use premium
unleaded gasoline with a posted
octane rating of 91 or higher.
Fuel
Use of the recommended fuel is
an important part of the proper
maintenance of this vehicle. To help
keep the engine clean and maintain
optimum vehicle performance, we
recommend the use of gasoline
advertised as TOP TIER Detergent
Gasoline.
Look for the TOP TIER label on the
fuel pump to ensure gasoline meets
enhanced detergency standards
developed by auto companies. A list
of marketers providing TOP TIER
Detergent Gasoline can be found at
www.toptiergas.com.
The eighth digit of the Vehicle
Identification Number (VIN) shows
the code letter or number that
identifies the vehicle's engine.
The VIN is at the top left of the
instrument panel. See Vehicle
Identification Number (VIN) on
page 12‑1.
Recommended Fuel
If the vehicle has the 6.2L V8 engine
(VIN Code W), use premium
unleaded gasoline with a posted
octane rating of 91 or higher.
You can also use regular unleaded
gasoline rated at 87 octane or
higher, but the vehicle's acceleration
could be slightly reduced, and a
slight audible knocking noise,
commonly referred to as spark
knock, might be heard. If the octane
is less than 87, a heavy knocking
noise might be heard when driving.
If this occurs, use a gasoline rated
at 87 octane or higher as soon as
possible. Otherwise, you could
damage the engine. If heavy
knocking is heard when using
gasoline rated at 87 octane or
higher, the engine needs service.
If the vehicle has the 6.2L V8 engine
(VIN Code T) or the 7.0L V8 engine
(VIN Code E), use premium
unleaded gasoline with a posted
octane rating of 91 or higher.
02-12-2012, 06:44 PM
#47
Le Mans Master
I will only run Chevron 91 (CA has nothing higher) in my Z06 unless I can't find one then I'll use the 76 Gas Station. From my understanding the difference in gas is the additives of course, how "fresh" it is, and condition of the storage containers. I also won't use a pump that is all 3 grades in one, has to have a separate pump for each grade dont want ANY 87 getting in my car
02-12-2012, 06:49 PM
#48
Le Mans Master
Interesting, no Sunoco or BP (the 2 closest to me) on the list.....I use Sunoco because the company "supposedly" doesn't import from the Middle East. Didn't know about the Top Tier thing, I might have to rethink where I get my gas, also didn't know Shell V doesn't have Ethanol in it, great info on this forum!
02-12-2012, 07:29 PM
#50
Burning Brakes
Of the 4 Shell stations (and all other brands too) in town only one has alcohol free gas and that is because he demands it from his distributor. He cares more about his customers than max profit. The state gives dealers a 5 cents per gallon tax break on fuel with ethanol so that's all anyone else will sell. He also is the only station with straight diesel, no bio BS. People literally come from miles to his station, especially those with 2 cycle engines and all the bus and truck fleets in town want the diesel. According to the owner this will all end soon when the Gov will only permit ethanol tainted gas to be sold. I love the Government.
02-12-2012, 07:33 PM
#51
Team Owner
Of the 4 Shell stations (and all other brands too) in town only one has alcohol free gas and that is because he demands it from his distributor. He cares more about his customers than max profit. The state gives dealers a 5 cents per gallon tax break on fuel with ethanol so that's all anyone else will sell. He also is the only station with straight diesel, no bio BS. People literally come from miles to his station, especially those with 2 cycle engines and all the bus and truck fleets in town want the diesel. According to the owner this will all end soon when the Gov will only permit ethanol tainted gas to be sold. I love the Government.
$3.77 per gal for 91 super unleaded.
Last edited by LS WON; 02-13-2012 at 01:36 PM.
02-12-2012, 10:00 PM
#53
Safety Car
02-12-2012, 10:14 PM
#54
Le Mans Master
Interesting, no Sunoco or BP (the 2 closest to me) on the list.....I use Sunoco because the company "supposedly" doesn't import from the Middle East. Didn't know about the Top Tier thing, I might have to rethink where I get my gas, also didn't know Shell V doesn't have Ethanol in it, great info on this forum!
02-12-2012, 10:37 PM
#55
Drifting
I'm convinced that "top tier" is all marketing hype, until a chemical engineer in the petro biz tells me differently..... that is how I found 100% synthetic oil back in the early 70s. (my wife was the engineer)
02-12-2012, 11:27 PM
#57
Le Mans Master
Keep in mind, top tier means far more than actual product. One of the biggest things is how product quality control is maintained, for fressness, water, equipment condition, ext.
02-12-2012, 11:44 PM
#58
Pro
Member Since: Jan 2012
Location: Billings MT
Posts: 731
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From the Manual, yeah I read the manual(lol):
Fuel
Use of the recommended fuel is
an important part of the proper
maintenance of this vehicle. To help
keep the engine clean and maintain
optimum vehicle performance, we
recommend the use of gasoline
advertised as TOP TIER Detergent
Gasoline.
Look for the TOP TIER label on the
fuel pump to ensure gasoline meets
enhanced detergency standards
developed by auto companies. A list
of marketers providing TOP TIER
Detergent Gasoline can be found at
www.toptiergas.com.
The eighth digit of the Vehicle
Identification Number (VIN) shows
the code letter or number that
identifies the vehicle's engine.
The VIN is at the top left of the
instrument panel. See Vehicle
Identification Number (VIN) on
page 12‑1.
Recommended Fuel
If the vehicle has the 6.2L V8 engine
(VIN Code W), use premium
unleaded gasoline with a posted
octane rating of 91 or higher.
You can also use regular unleaded
gasoline rated at 87 octane or
higher, but the vehicle's acceleration
could be slightly reduced, and a
slight audible knocking noise,
commonly referred to as spark
knock, might be heard. If the octane
is less than 87, a heavy knocking
noise might be heard when driving.
If this occurs, use a gasoline rated
at 87 octane or higher as soon as
possible. Otherwise, you could
damage the engine. If heavy
knocking is heard when using
gasoline rated at 87 octane or
higher, the engine needs service.
If the vehicle has the 6.2L V8 engine
(VIN Code T) or the 7.0L V8 engine
(VIN Code E), use premium
unleaded gasoline with a posted
octane rating of 91 or higher.
Fuel
Use of the recommended fuel is
an important part of the proper
maintenance of this vehicle. To help
keep the engine clean and maintain
optimum vehicle performance, we
recommend the use of gasoline
advertised as TOP TIER Detergent
Gasoline.
Look for the TOP TIER label on the
fuel pump to ensure gasoline meets
enhanced detergency standards
developed by auto companies. A list
of marketers providing TOP TIER
Detergent Gasoline can be found at
www.toptiergas.com.
The eighth digit of the Vehicle
Identification Number (VIN) shows
the code letter or number that
identifies the vehicle's engine.
The VIN is at the top left of the
instrument panel. See Vehicle
Identification Number (VIN) on
page 12‑1.
Recommended Fuel
If the vehicle has the 6.2L V8 engine
(VIN Code W), use premium
unleaded gasoline with a posted
octane rating of 91 or higher.
You can also use regular unleaded
gasoline rated at 87 octane or
higher, but the vehicle's acceleration
could be slightly reduced, and a
slight audible knocking noise,
commonly referred to as spark
knock, might be heard. If the octane
is less than 87, a heavy knocking
noise might be heard when driving.
If this occurs, use a gasoline rated
at 87 octane or higher as soon as
possible. Otherwise, you could
damage the engine. If heavy
knocking is heard when using
gasoline rated at 87 octane or
higher, the engine needs service.
If the vehicle has the 6.2L V8 engine
(VIN Code T) or the 7.0L V8 engine
(VIN Code E), use premium
unleaded gasoline with a posted
octane rating of 91 or higher.
with people who get paid a lot more money then members of this forum to make and test the engine. I think I will side with them.
Last edited by C3 Vette Fan; 02-13-2012 at 11:21 AM.
02-13-2012, 06:39 AM
#59
Drifting
And if your definition of 100% synthetic oil is from 1970, it is probably out of date. At that time, 100% synthetic meant group 4 oil. A lawsuit between Mobil and Castrol which Mobil lost, has allowed the definition of 100% synthetic to be expanded to include group 3, which most experts agree is slightly lower quality. As a result of that, you can be virtually certain that if your “100% synthetic” oil does not specifically say group 4 on the can, it does not meet your definition of 100% synthetic from 1970 (or from 1990 either for that matter). This topic is discussed in more detail in a lengthy post of mine in the current thread called “Mobil 1 all marketing hype!”, so I will not repeat it here.