Ask Car Mechanic

Max Smith

What Color is Gasoline?

Gasoline is a highly volatile liquid petroleum product containing a mixture of octane and hydrocarbons. In its natural state, gasoline is generally clear, although it may have a slight amber tinge depending on its clarity. Most gas stations do not sell gasoline in its pure state, though. The fuel you purchase from a gas station … Read more

EGR Delete Explained (Pros & Cons)

An EGR delete is a modification that removes the exhaust gas recirculation system from a vehicle. This can be done for a number of reasons, such as increasing performance or preventing engine damage. To complete the process, you’ll need an aftermarket performance kit that physically removes the EGR valve, preventing exhaust from reentering the engine. … Read more

What is a Hydrolocked Engine and How Bad is It?

Hydrostatic locking—more commonly referred to as hydrolocking—happens when an engine fills with liquid, causing it to seize up. This usually happens if a driver plows their vehicle into a deep puddle, forcing water into the cylinders and preventing the engine from turning over. Depending on the extent of the damage, you may be able to … Read more

Warped Brake Rotors (Signs & Causes & Fixes)

Brake rotors make up an essential part of your vehicle’s brake system, allowing the pads to grip onto a hard surface, bringing your vehicle to a complete stop. Due to constant friction created between the brake pads and rotors, though, the sturdy metal plates can progressively warp and deteriorate to the point that they no … Read more

Signs Your Car Needs an Oil Change

Oil plays a vital role in engine performance by helping to reduce wear and tear, preventing parts from overheating, and keeping the engine clean. Over time, though, oil can break down, causing it to become less effective. When this happens, your engine may run hot, emit black or bluish smoke, and issue a check engine … Read more

Bad Shocks and Struts (Symptoms & Causes)

Shocks and struts are an integral part of a vehicle’s suspension which work together to dampen vertical motion, provide structural support, and keep the tires in contact with the road. If a vehicle’s shocks and struts go bad, it can negatively affect the ride quality, handling, and braking. Depending on how badly the parts have … Read more

Bad Charcoal Canister (Signs & Causes)

The charcoal canister—also known as the EVAP system—is an emissions control device used to capture gas vapors that escape from a vehicle’s fuel tank. The canister contains activated charcoal, which draws vapors into the engine, where they can then be burned to generate power. However, if the system fails, it can cause foul gas odors … Read more