Gas prices are zooming sky high with no ceiling in sight. Do you remember when a gallon of unleaded cost $1.25?

These days, it’s more important than ever to stretch your dollars at gas pump.

Here are ten gasoline buying tips to help you do that.

1. Shop Around

Prices vary among stations that sell same brand. Find a station that sells your favorite brand cheaper. Prices between brands can vary. You can save money by switching brands.

2. Use a Gasoline Credit Card

Some give a 5 to 10 percent rebate on purchases.

3. Buy Gasoline in Morning

Gasoline is denser during morning when temperatures are colder. Gas pumps measure and charge by volume, not density. You’ll be getting more solid fuel rather than vapors for your money.

4. Buy Gas from a Busy Station

Busy gas stations refill their underground tanks often. Slower stations don’t. Therefore, their tanks may have stale contaminated gas. Older fuel is poorer on fuel economy and performance.

5. Turn Nozzle

Let’s first take a look at how these cars are put together. First, we have to understand concept of “hybrid”. A hybrid car might be defined as any vehicle that uses two or more sources of energy to propel itself. Seems simple enough. Hybrid machinery is all around us in form of diesel-electric, such as city buses, and nuclear-electric, such as those used on many US submarines. So, idea and technology have been around awhile—it’s just now that another energy scare like that of 1970s, that we start becoming resourceful and a little ingenious. Hybrid power is on up-rise (and in-demand) only because two different types of propulsion possibilities (gasoline/diesel and electric) standing alone have proven an ineffective means to get both power and efficiency in one package. But, working together, there is promise.

A hybrid car, in modern terminology, is usually referring to any car that has a combination of an electric and a gasoline (or diesel) motors. These cars use kinetic energy (referred to as regenerative breaking), absorbed by your breaks when you slow down to a stop, to recharge batteries that in turn push electric motor. All of this is combined into one finely tuned schematic—the result being power to transmission and propulsion power (i.e. wheel movement).

All hybrids contain a gasoline engine, an electric engine, a generator (mostly on series hybrids), fuel storage container, batteries and a transmission.

There are basically two different types of hybrid engines. The first is a parallel hybrid. This sort of hybrid actually contains both a gasoline and electric motor that both operate independently to propel car forward. It’s designed to have two power sources working with one goal in mind. In many ways, they are still “connected”.

The second hybrid is often referred to as a series hybrid. In a series hybrid, gas or diesel powered engine doesn’t connect to transmission directly, meaning that it doesn’t actually propel car by itself. It actually works indirectly, powering a generator, which in turn (controlled by computer monitoring systems) either feeds power to batteries or directly feeds power to an electric motor that connects to transmission.