Ownership The Vapor Rub: Summer versus Winter Gasoline Explained
Here Is What Happens When You Fill A Car's Gas Tank With Coke
Most of us definitely haven’t thought about what a car would do if we put other liquids in an engine that runs on gasoline. Most of us definitely haven’t thought about what a car would do if we put other liquids in an engine that runs on gasoline. But cars are running on all kinds of stuff these days, right? Like electricity, and so on? That’s what I hear. It’s worth a try to put Coke in the tank, in case gas prices go up and we all get desperate.
Every September 15, as we resist switching to long sleeves and heated seats, fuel stations in all 48 continental states must begin dispensing winter-grade gasoline under strict federal deadlines. But topping off in Chicago isn’t the same tankful as in Boise. Enter the confusingly zoned world of winter and summer gasoline.
Starting in 1989 before the 1990 Clean Air Act, the Environmental Protection Agency began restricting the volatility of retail gasoline sold in the summer. Volatility is the point at which a liquid evaporates, or vaporizes, and while that’s advantageous for a pot of pasta, it’s pretty bad for gasoline. Gasoline vapor contributes to ground-level ozone, which in turn contributes to smog and respiratory problems including congestion, coughing, and chest pains. Cars can suffer vapor lock, where the gasoline vaporizes before it reaches the fuel pump. Evaporative emission-control systems (EVAP), which use a charcoal filter in the gas tank to soak up vapors that are then mixed back into the throttle body, have largely fixed this problem since the 1970s. But when it’s hot outside, gasoline has a greater chance of evaporating from your car’s fuel system.
The Fastest Way to De-Fog Your Windshield
Science proves you can blast away the fog twice as fast.Winter's here, and for lots of us, that means dealing with a foggy windshield full of condensation when we go to start our cars. In the grand scheme of things, it doesn't take that long for your defroster to clear your windshield, but if you're harried and already late for work, that extra time waiting can feel like an eternity. And we don't want you driving around through a half-obscured windshield like a dingus.
Federal law prohibits gasoline with a Reid vapor pressure (RVP) greater than 9.0 pounds per square inch to be sold at retail stations from June 1 through September 15. (Geeky side note: RVP is not a traditional pressure reading. Under the American Society for Testing and Materials’ D323-99a standard, one part gasoline is submerged in a dual-chambered container with four parts air in a water bath at 100 degrees Fahrenheit. A gauge measures the resulting vapor pressure in the air chamber. Therefore, the RVP measures a gasoline’s vapor pressure at 100 degrees, not at ambient temperature.)
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I Put Diesel In My Car's Gasoline Tank! What Do I Do Now?
<p>This is disastrous for your engine, so if it happens, here’s what to do next.</p>Hello! This is the beginning of what will be a regular feature on this internet website: A column in which I investigate your car problems, mostly to determine just how screwed or not screwed you might be.
Certain metro areas in 14 states designated by the EPA as high-ozone “attainment areas” set lower RVPs of either 7.8 or 7.0 psi. California has a 7.0-psi limit, which drops to 6.9 psi for nonoxygenated fuels. The Golden State’s perpetual summer weather means summer-grade low-RVP gasoline must be sold starting as early as April 1 and as late as October 31. Other U.S. cities such as Phoenix extend summer-grade fuels into the fall. During emergencies that cause fuel shortages, the EPA relaxes its rules. Areas of Texas swamped by Hurricane Harvey, for instance, were allowed to sell gasoline up to 11.5 psi RVP through late September.
Why You Should Be Driving on Winter/Snow Tires
<p>Updated studies and CR testing help you get a grip on the right ones for your needs</p>It's time to end the annual debate about whether to install winter/snow tires on your car. If you live in an area where snow is a constant throughout winter, having dedicated winter/snow tires can improve your safety, according to a number of studies and surveys, as well Consumer Reports' own tests.
According to ExxonMobil, there are at least 14 unique types of summer-grade fuel sold nationwide. While the majority of states fill up with conventional 9.0-psi RVP gasoline, refiners must produce blends that are oxygenated, to reduce carbon monoxide; reformulated, in 17 states, to further reduce ozone and smog-forming toxins; for California only; and more. It gets trickier with ethanol. Since 97 percent of all gasoline sold contains ethanol—and, according to the American Petroleum Institute, ethanol blended up to 10 percent results in gasoline with a 10.0-psi RVP—the EPA counts such blends, called E10, as meeting the 9.0-psi standard. But many states, including the entire Northeastern seaboard from Delaware to Maine, don’t cut ethanol any slack. So gasoline refiners must be creative to reduce summer gas volatility, and creativity is expensive.
Whatever the blend, refiners reduce the concentration of butane—a cheaper additive with an exceptionally high RVP of 52 psi—down to about 2 percent. That means using higher concentrations of pricier additives, such as alkylates and reformates, and sometimes a lengthier refining process that slightly reduces yields. All of that—and processing those 14 special blends—helps drive up pump prices during the summer. Some states specify multiple summer blends. Others, like Arizona, use state-only “boutique” fuels year-round. This is why gas prices can vary widely across counties within just one state.
Despite those higher prices, summer gasoline contains about 1.7 percent more energy than winter gasoline. Warmup times aside, that’s why you could measure reduced fuel economy outside the summer months. Winter gasoline varies widely in volatility throughout the season. Refiners constantly adjust their RVP to as high as 15 psi—higher than sea-level atmospheric pressure, which is 14.7 psi—to help the gasoline ignite more easily in colder temperatures. The vapor pressure varies by month, region, and octane. In frigid temperatures, higher-volatility fuel is essential and does not cause the smog effect it would in the summer. Using low-RVP fuel is a nonstarter in freezing weather; the engine won’t turn over or might misfire.
It is a complicated process, but in general, gasoline refiners make the summer-to-winter switch so seamlessly that you should expect consistent, clean performance from your car’s engine regardless of the season or where you live.
17 states sue Trump administration over vehicle emissions .
California and a group of 16 other states on Tuesday challenged the Trump administration's decisionThe 17 states and the District of Columbia filed a lawsuit in the U.S. Court of Appeals for the District of Columbia challenging the Environmental Protection Agency's decision in April to declare U.S. vehicle emissions and fuel efficiency rules through 2025 "not appropriate.
Charging a Heat Pump at Start up or in the Winter Time! What you need to Know!
This is how to charge a new R-410A heat pump system in the middle of winter. An overview of the superheat process is explained and examined to see if you can use it to charge since the liquid...
What is VAPOR LOCK? What does VAPOR LOCK mean? VAPOR LOCK meaning, definition & explanation
What is VAPOR LOCK? What does VAPOR LOCK mean? VAPOR LOCK meaning - VAPOR LOCK definition - VAPOR LOCK explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/license...
Wednesday, 04 april 2018
When buying a car, you might not always have an expert mechanic on-hand. Here's how to inspect one yourself.There are lots of basic things on a car that you don't need any training to inspect. Repaired body panels and scuffs are easy to spot if you spend time looking, as are any […]
Wednesday, 14 march 2018
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Wednesday, 14 march 2018
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Wednesday, 14 march 2018
Winter tire care tips from the experts.A few things kill tires. One is UV light, and another is sitting stationary in one spot. Chemicals, ozone, and cold temperatures also hurt tires. We'll cover why, and what to do about each aspect. The good news is, it's not terribly hard or expensive […]
Wednesday, 14 march 2018
<p>Every September 15, fuel stations in all 48 continental states must begin dispensing winter-grade gasoline under strict federal deadlines.</p>Starting in 1989 before the 1990 Clean Air Act, the Environmental Protection Agency began restricting the volatility of retail gasoline […]
Sunday, 17 june 2018
As families head out on the road this summer, keeping children safe should be top of mind. Consumer Reports’ car-seat experts have some tips for protecting kids while traveling during these summe r months.Check for Hot Car-Seat Parts"Car-seat components, such as buckles and buckle […]
Saturday, 16 june 2018
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Saturday, 16 june 2018
My recent blowout in a BMW put a spotlight on the pros and cons of run-flat tires.Rewind to last weekend, when the passenger-side rear tire of my 2018 BMW 640i Gran Turismo test car had a brief encounter with a Detroit-style pothole. Normally in this situation, I'd just pull over, get the […]