Excellent company. If carbon deposits are a big deal, then you’d expect the engines of people buying cheap gas would have significant buildup within a few years.I use Top Tier all the time. The dealer thinks “bad gas.” I had switched to a lower octane, so maybe it started affecting the car (and the previous owner was using 91 maybe). Whatever the reason, I no longer buy gas there.Well at least he’s dating someone decent for a change.I wouldn’t necessarily go out of my way to buy “Top Tier” gas until they run the tests on a modern engine.
I went to Arizona last July and as soon as iI filled up in Arizona my gas millage jumped up four miles to the gallon. Everything else will be OEM or better.I have run Motorcraft fl1as (ford small block) filters in my jeeps for as long as I have owned them. Last week, I filled both up with Costco 87 here in Long Beach. That relatively low volume combined with the realities of refining partly lead to that significant retail cost differential. We were using Sam’s Club 91 octane in ’14 Honda Odyssey V6 and my ’95 Nissan Sentra–it seemed no different than the 91 octane Chevron we’d always used. I go the non-oxy premium route since my car recommends it and gives a second quoted power rating on premium. Premium gasoline typically has an octane number four to six points higher than regular – 93 versus 87 for example. I wonder who else might be doing that to help with the deposit problem? At 5,000 miles, NO deterioration and steadily improving performance. BP originally partnered with Ford separate from the Top Tier Consortium (I remember seeing Fords with “Ford recommends BP” on the fuel door or cap) and claimed to meet similar standards, but then eventually joined. Same fuel. GM Vice President Dan Nicholson addresses the gathering August 2, 2016 at the Center for AutomotiveI’ve spent my adult life working in and around the automotive industry.
QT employees seem motivated, the stores are clean, service is quick, coffee is good. They also saw better drivability and better fuel economy when the better fuel was used. Over 100,000 miles, that would amount to about 3,968 gallons of gasoline. You were mentioning notes in your messages yesterday.
My guess is that the better detergents might help the fuel injectors, but with direct injection the intake valves never see the detergent.Everything I have read says George B is right. Use of fuel that has more than 10% ethanol content, such as E15 (15% alcohol), is NOT recommended.
Call it 3k.
Now I’m in Georgia and was glad to see they have QT’s here with 93.Wasnt there an article about a year ago that you should only use Top Tier gasoline in EDI engines?Added horsepower aside, it seems the GDI fuel injection system has a much tighter tolerance than its multiport predecessor. He was talking about boat motors at the time, but they seem to be even more temperamental when it comes to gas than any car I've ever seen. The AAA survey found that 63 percent of drivers who responded believe that quality of gasoline differs between retailers, but only 12 percent use the additive package as a deciding point when making a purchase. How significant is carbon build-up on valve stems to engine performance?How about doing a “weights and measures” test on octane – is the 91 really 91, is the 87 really 87, or is there some sloppiness going on?Shell V-power is always about a dollar more than 87 here in Ohio. Might be an interesting topic to explore in a future story.I’m under the impression that PEA is the active agent that makes TT fuel Top Tier. The AAA articles says non-top tier causes 19 times more deposits. No clue about TT. Its rusting pretty bad, and I’ve said that as soon as that goes through the rockers or is more than just surface rust on the frame/suspension, its gonzo. It was a really hot day (100+ degrees), and I *did* have the A/C on–but there was an immediate difference. When i got home the first of October I filled up at that same station and my milage dropped four miles to the gallon. Here's what the cost could be for drivers. Or drive to the next town to save $10 on shoes. Since then I’ve been trying to educate my readers, viewers and listeners about how the latest automotive technology works, what it can do and perhaps more importantly, what it can’t do. I was shocked at the crud that had accumulated in the throttle body in just a little over 100k miles. But it’s really an uncontrolled experiment.PEA does have an effect. I know switching to a lower octane could cause knocking.I bought some Techron for both cars and the next fill-up. Normally, I got around 300 miles to a tank, sometimes closer to 350. But the Accord has started making a clock-like regular clicking noise it wasn’t making before.