HBO for gasoline engines! - Toyota Corolla Runx, 1.8 L, 2001

creepy

Not everyone understands this, we will ruin the HBO office))))

yes nafig he needs this gas ...

we do not drive so long that HBO pays off. In addition, I believe that if a manufacturer has supplied a gasoline engine, then only it has a place.

it does not depend on HBO! but from the adjustments, that is, how you set it up, if everything is done correctly, then the engine runs even longer than on shitty gasoline ...
when running on gas, you need your brains to correctly determine the angle and other parameters, otherwise, due to incorrect settings, the engine dies, including from soot and from detonation ...

although I myself will not put gas on Toyota, but I will put on the Volga ... she eats like a mamant)))))

I still need to adjust the valve, I also got caught on the Outback as well as there are no hydraulic lifters on this engine :) I drove 160tkm on the sonata NF on gas and the friend's car is still running as cute

I don’t see any LPG here, but the constant use of low-octane gasoline on the face and only for this screwed up the engine and gas has nothing to do with it.

The octane number of propane-butane is 103-105, which practically eliminates detonation and reduces the load on the cylinder-piston group; the engine runs "smoother" and quieter.
The ignition temperature of gas is higher than petrol. The difference is about 200 degrees, which also does not contribute to detonation at all.

And simple arithmetic 150000km / 10km / l * 15 rubles = 225000 rubles saving on fuel!
How much did the repair cost? =)

Shl
Indeed, in some cases the use of fuel with a high octane rating can lead to burnout of the exhaust valves. It is believed that this is due to the higher combustion temperature of the mixture with a higher octane number. In fact, the opposite is true. Fuel with a higher octane rating usually burns at the same or lower temperature, but burns longer and burns completely, unlike a low-octane mixture. In this case, if the combustion time exceeds the calculated one, it may turn out that in the exhaust phase, a still burning mixture will be released through the valve instead of exhaust gases. In practice, most ICEs are designed to realize the full potential of high octane fuels without compromising exhaust valves. As mentioned above,

In modern cars, a system is installed that automatically adjusts the ignition angle, which allows the car to operate on high-octane fuel. If your car does not have such a system, then you should contact the service center to install an additional module that will allow you to adjust the ignition angle.

There is another reason for valve burnout, which is absolutely unrelated to the type of fuel (gasoline / gas) and its octane number. And this happens due to the unadjusted valve clearance. If the valve clearance is so large that the valve cannot close completely, then the exhaust gases will pass through the riser valve and eventually "burn through" the seat or valve. Ideally, the valve in the closed position should sit very tightly in the “valve seat”. This requires that there is no pressure at all on the valve stem. The pusher should only touch the tip of the stem. But in reality, this cannot be realized, and therefore a small space remains between the valve stem and the valve arm (pusher), which is called the valve clearance.

Modern engines are equipped with hydraulic lifters or hydraulic pushers that automatically adjust the valve clearance. On engines that are not equipped with hydraulic lifters, the clearance is adjusted mechanically (manually).

Detonation is even more unpleasant when the ignited mixture explodes. That is, after a short moment, when combustion propagates at a speed measured by tens of centimeters per second, it suddenly increases significantly. This happens under the influence of both temperature and pressure, and the effect itself is provided by the presence of a certain amount of one of the combustion products. Effects from detonation: instead of a combustion front, we get a shock wave (in principle, the same, but only several times higher speed and temperature), as a result - a sharp drop in thermal efficiency and shock loads on the piston group, gradual destruction of the combustion chamber. Now, for a second, imagine what happens if the detonation occurs not after setting the mixture on fire with a candle, but after self-ignition - everything is the same, but only against the piston stroke.

And then we come to the next concept - the octane number. It turns out that different types of fuel have different resistance to premature ignition and detonation (this is called detonation resistance). The octane number is just an indicator of this resistance. The higher it is, the higher the resistance.

By the way, is the lambda probe good? If not, the result will be either burnout of valves or burnout of valves and pistons, in the first case, the brain will pour a lean mixture - the valve plates will burst, and the seats will burn out, in the second case - a rich mixture, burnout of the valve and damage to the seat, a bonus melted heat skirt on the pistons and the exhaust system darkened to death from overheating.
And you also need to adjust the valve at least once every 50tkm, have you done the adjustment at least once?
PS By the way, as I heard, this motor often has injectors flowing, + high vulnerability to overheating, plus because of the engine material, a great sensitivity to low temperatures, as well as a tendency to oil coking and increased carbon formation due to intense thermal conditions and cooling features.

Why is there gas then?

Why the hell are you chasing everyone here. I already drove 250 thousand on gas on my prior. oil does not eat, everything works fine. You don't need to tear your car and you will ride for a long time

Man, you're just "Troubled" and "Balabol"

The mixture was poor, I think, or drove on gas. GAS burns longer, respectively, the compression ratio should be in the region of 13-14, or not drive.