Description

It would take a long time to discuss and explain all the strengths of this video course for automotive diagnostics. For a better understanding, watch the original video course.
This course consists of:

• Start

• Practitioner

• Expert

The entire video course will take approximately 32 hours (give or take) and includes bonus materials!!!

How to reduce fuel consumption?

What causes more fuel consumption, for example, when a driver drives on the highway? Fuel consumption depends on the vehicle’s drag and acceleration coefficient (speed). Frankly, I don’t remember exactly what our cx*v² coefficient is divided by, and in the end, we get the power needed to drive fast at that speed. Why are we talking about this? At 40 km/h, there’s one drag; at 80 km/h, the drag doesn’t double, but quadruples. And at 120 km/h, the drag will be a whopping nine times greater than the fuel consumption. People often don’t know or understand this.
Manufacturers assumed that highway driving is 90 km/h in 5th gear on a flat road.

People say that fuel consumption on the highway is such-and-such an amount, and that’s too much. A counter question arises: what speed should we drive at? And the answer is also 140 km/h. In this case, v² is common. What do manufacturers recommend for fuel consumption? On the highway, the costs are one thing, in the city, a completely different matter.

Manufacturers assume that on the highway, the fuel consumption is 90 km/h in 5th gear on a flat road. When overtaking a truck, we floor the gas, then brake, then accelerate again, brake again, and then accelerate to 140 km/h. At this speed, the stated fuel consumption will never be achieved. They say, motorists, understand, fuel consumption is calculated only this way. Let’s say it’s a Volga. It has completely different problems. People argue that it consumes too much. But in reality, the Volga’s performance still depends on how the car is designed, because the Volga has no aerodynamics. The 10-series is somewhat sleek. The Priora is the same. These cars also have good torque vectoring, which is why they consume relatively little fuel on the highway.

A Volga or any other classic with fairly large torque vectoring (TFS) has the next-highest torque vectoring (TFS). Even if you’re driving slowly, it will still consume more fuel because of the raised torque vectoring (TFS). Not because it weighs a lot, but because it has terrible drag. TFS depends on many factors. Not just the vehicle’s appearance, but also on the interbody clearances.

Here’s a Lacetti, and the clearances are almost invisible, like a millimeter. That’s why foreign cars are squat, and for Ukraine, they’re forced to raise them. That’s precisely why foreign cars have such a low torque vectoring (TFS), they practically lie on the road. It’s directly affected by the car’s ground clearance and whether the CX coefficient is in a good range. Then comes the fun part: we’re watching the car and can’t see what happens if we lift it. Foreign cars have everything covered and smooth, but isn’t it the same with ours? Everything is covered with at least some kind of protection, so even there everything is level, and not just any old thing. This also affects drag. It’s because of the CX coefficient that the Volga consumes so much fuel; racers consume the same amount of fuel because of the V² coefficient.

They used to show off, so they put gutters above the doors, very popular on classic cars. Water loves to run down these gutters. Aerodynamics and the Volga are completely different things. This is an example of how not to do it. But as the saying goes, nothing can help it. This vehicle is over 50 years old. Back then, they didn’t go that fast.

Now drivers get into Volgas with upgraded engines and say why they guzzle so much fuel. Another thing to consider is why they consume so much fuel. I’d like to give some specific numbers. I’ve had so many cars before, even a Volga 3110. I bought it and drove it for a couple of years a while ago. What did I get out of it? It has a decent idle speed, but it’s better to change it from top to bottom. Of course, my camber was set correctly; everything was done well. My consumption at 90 km/h was 9 liters. When I revved it up, it immediately went up to 10-11 liters.