08-24-2023, 12:10 PM | #243 | |
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08-24-2023, 12:59 PM | #244 |
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08-24-2023, 01:03 PM | #245 | |
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I was using QT, and it was good, but now have the shell app and get .5-.35 off. I plan around those locations as they don't recognise Circle K. I wish I could find actual DATA!! |
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08-24-2023, 01:07 PM | #246 | |
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08-24-2023, 01:11 PM | #247 | |
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Now some engines have PFI w/DI inwhich you'd be correct. However, injectors tips need to remain carbon free. Carbon can build up on shut down because fuel at the hot injector tips just bakes.
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08-24-2023, 01:14 PM | #248 |
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I don't see how you get .35c off without doing their weird "pay to get more off" promotional things. QT is consistently more than .35c off for premium than every other big brand around me anyway.
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08-24-2023, 01:15 PM | #249 | |
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It's literally how the top tier gas certification works. The additives prevent things like he described from happening. |
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08-24-2023, 01:18 PM | #250 |
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Costco is 10 min away. I save almost $9/tank compared to Shell V-Power 93.
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08-24-2023, 01:22 PM | #251 | |
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PFI allows fuel to wash over the valves which is why they stay clean.
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08-24-2023, 01:27 PM | #252 |
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https://www.vehicleservicepros.com/c...in-gdi-engines
Despite the IDEA that fuel not making it into the crankcase, so it can't help with carbon buildup on GDI engines, both Honda and Volkswagen say BS. Audi outright says the garbage fuel standards we have in the U.S. are directly responsible for all the trouble we have with carbon deposits. Adequate detergent packages from Top Tier gasoline in the U.S. helps SOME with deposits by going through the crankcase and being volatile in the PCV system. Having done multiple oil analyses on my cars in the past, there is a significant amount of gasoline in many oil crankcases - dependant on car and engine. And if it's crap, of poor quality, it contributes to an oil vapor that can be more problematic, no matter how good your oil is. Cause if you put skanky convenience store gas in your tank into your $100,000 car with $20 per quart oil in it, you get skanky gas into your oil vapor floating around your crankcase. Shawn |
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08-24-2023, 01:30 PM | #253 |
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There's no wash on the valves, but the valves are still involved in the injected fuel/air mixture, which makes the valves harder to have deposits removed because of the fact there's no fuel wash. That's why Top Tier gas is more important. You don't get the deposits in the first place so there's no need to be concerned about deposits.
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08-24-2023, 01:32 PM | #254 | |
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Do an oil analysis of your own oil and tell me it's 0% gasoline contamination. Gasoline contamination contributes to oil vapor in the crankcase, directly affecting valve stem deposits. Shawn |
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08-24-2023, 01:38 PM | #255 |
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I run Stabil Marine in all my cars from E10 to full E85.
It has nice dose of PEA fuel system cleaners along with corrosion inhibitors. This helps slow fuel oxidation as well as clean injectors.
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08-24-2023, 01:38 PM | #256 | |
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08-24-2023, 01:39 PM | #257 |
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08-24-2023, 01:41 PM | #258 |
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08-24-2023, 01:41 PM | #259 |
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Every tank of gas based on their recommendations.
Stabil Marine only takes 1 oz to treat 10 gallons, so it's somewhat cost effective since you only need to use 1.5oz to treat a full tank.
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08-24-2023, 01:51 PM | #260 | |
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08-24-2023, 01:51 PM | #261 |
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08-24-2023, 01:56 PM | #262 |
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Since this is an ethanol treatment, it will not extend the OCI or plug life will it?
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08-24-2023, 01:57 PM | #263 | |
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Top tier gas has nothing to do with fuel solution nor will it prevent IVD. Choice of oil and the PCV have an impact.
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08-24-2023, 02:03 PM | #264 | |
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