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03-12-2013, 02:40 PM #21
03-12-2013, 04:13 PM #22
Forget octane numbers. Give me back my ethanol-free gas!Clint (TX) 2001 Silverado LS 4.8L auto 2wd ECSB [GARAGE]
Gasoline or gunpowder: If you ain't burning one, you ain't having fun!
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03-12-2013, 04:54 PM #23
03-12-2013, 05:32 PM #24
This is one of the times, I agree with @stchman completely (there have been times our opinions have differed, his fault ). All things being equal, regular gas is all that is needed in most of our trucks (high performance, tuned, not withstanding)
They probably do get the gas from Canada (I know Irving supplies a lot of New England), however, the mix is added at the fill station. Irving, and most other Canadian suppliers, mix according to the customers demands, so if customer wants 10% in all gas, the trucks deliver 10% to the customer's stations.Ray
'09 Avalanche LTZ - Black
'05 Envoy XL (sold)
03-17-2013, 10:14 PM #25
- Join Date
- Feb 2013
- Amarillo Texas
I run Plus gasoline here because most of the station's regular gas is 86 Oct where the manf asks you run 87. Plus is 88, so there you go. Past that, I notice no difference between plus and premium, but I do actually notice a difference between regular and plus. That, and Walmart gas makes my truck hard to start. Weird, I know. I have to agree with the post I read up there regarding performance vehicles. If I'm running a high compression fully built motor, I'm running as high of octane I can and at the strip I'm running race gas. As far as my stock 5.3L is concerned, if it doesn't like 88 oct, it can get over it.
03-17-2013, 10:47 PM #26
I'm not getting into the "regular vs premium" debate. However, for those wanting to know where they can find ethanol-free gas, I'd like to post this link
I almost always get gas at the local Co-op for the Camaro. I'm not as picky in the truck since it's my daily driver and it's EFI so it can handle it a little bit better. The 73 is carbed so I avoid the 10% ethanol if at all possible (albeit it's nearly impossible when I take it on a road trip)93 Suburban (Southern Slayer): TBI 350, 4L60E
73 Z28 Camaro: L82, TKO 600
"...Death smiles at us all, all a man can do is smile back..."
03-18-2013, 08:37 AM #27
Ethanol free fuel is widely available in Michigan. The issue is that most the time it is located it at a marina. They charge $2-$3 dollars more than "street price". I did notice that there is a gas station near my sisters home that sells it. I may take a drive by next time I am in the area and see how their prices look.
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1995 Silverado 4x4
6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge
2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors, http://www.gmtruckclub.com/forum/sho...5-GMC-Yukon-XL
2002 Silverado ext cab 2wd (Sold)
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03-18-2013, 09:58 AM #28
- Join Date
- Feb 2013
- Amarillo Texas
I can see how that would work. I haven't had an issue running Plus at all unless it's Walmart gas. It always struck me as odd that Walmart gas was the only one but if nobody buys plus then there you go. As far as cleaning out the fuel systems and stuff like that, they make fuel system cleaner and I do that every time I change my oil. I'd run regular if I could, but I'm not going to run lower octane than the manf is asking for. Plus is the logical choice to me for that reason only.
03-18-2013, 11:00 AM #29
- Join Date
- Mar 2007
- Grand Prairie, Texas
- Blog Entries
like a.few others have noted premium does more to inhibit knocking with new engines its more important since its not as easy as adjusting the spark like older engines.
but unless you have a knock issue its taking money out of your pocket running premium.
03-18-2013, 12:26 PM #30
I use pure gas as much as I can on my boat and then sometimes in my truck. What kills me is filling up my boat with that because it is usually 75 cents to a dollar more and when filling a 130 gallon tank it hurts. The boat runs so much better though2004 GMC Sierra SLT 6.0L 4x4
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