For a more objective classification, specialists referred to different sizes. The main criterion for the assignment of the places in the upper part is the total duration of the engine. In addition, the reliability of their individual systems and components was taken into consideration, as well as the quality of the production parts. A further confrontation criterion was the cost and availability of spare parts. The 2.0 -0 –liter atmospheric petrol engines are a rather inventive group, but they are not the most problematic; Many engines in the same family, but with a larger volume (for example 2,3-2.5 liters) are much more capricious.
1st place. Subaru
The most reliable engine of the EJ20 series, known since the late 90s, is still used on the Japanese market. In Europe, the era ended in 2001, when it was replaced with an FB series, with a transmission of the distribution chain instead of the belt. Among the last mainstream Subaru, Forester and third generation Impreza are equipped with the EJ20 engine. This engine reaches a mileage of 250,000 km. The quality of the parts is as high as that of the 1 AZ Toyota and, moreover, EJ20 also has another resource. This is the only engine with at least one large factory size, a rarity for engines since 2000.
In addition to the advantages, it also has disadvantages. Although there is an alternative to the block sleeve, the original spare parts are expensive and there are very few analogues. Among the Japanese «Big Four», the Subaru engine will require the highest revision costs. Given the reliability and long duration, it is worth it.
2nd place. Toyota 1-Z.
This well -worked engine operated under the hood for two generations Avensis and the penultimate Rav4 crossover of generation. It leads up to 200,000 km and the work of the component elements is good. In this ranking there are two clear leaders in this indicator, that is to say: Toyota and Subaru. The 1 AZ engine has passed the Honda R20 in another way: the original parts are among the cheapest on the market. The reconstruction price of a 1 AZ engine is the lowest in this top.
3rd place. Honda
The Honda R20 engine was mainly installed the sixth and eighth generation of Accor and Cr-V of the last two generations. It lasts 200,000 km and the work of the parts is slightly larger than that of the Mitsubishi engine. The R20 engine has a simple but very reliable design. A simple «with screw» valve adjustment scheme does not require the selection and replacement of the touches of the valve. If the regulations for this operation (every 45,000 km) are respected, R20 will not cause problems until the natural wear of the cylinder group.
4th place. Mitsubishi
The engine of the Mitsubishi 4b11 series opens the group of engines known for lack of serious problems. It was mounted on the previous Outlander and Lancer X generation from the first years of production. The engine has a resource of 180,000-200,000 km. The work job is good. The general reliability of the engine is due to the simplicity of design, without capricious systems. The engines reach the service due to the natural and natural wear of the piston group. The cost of restoring the 4B11 engine is comparable to the engines Renault, Nissan, Ford, Mazda.
5th place. Renault – Nissan
The engines of the Renault-Nissan producers of the M4R/MR20 families are the most familiar in the Japanese crossover. Mr20 was equipped with X-Trail of the previous generation and Qashqai has not separated from it so far. The French counterpart belonged to the third generation Megan and is still available for fluidity. The duration of the life of the Motor Brothers Alliance is 180,000-200,000 km. The quality of the parts is better than the closest competitors: Mazda and Ford cars, but there are some disadvantages:
- Create on the rims of the crankshaft, producing the deformation of the 4th cylinder.
- The distribution chain is short (it extends before 80,000 km).
The original spare parts are available separately. Their review costs are comparable to those of Ford and Mazda.
6th place. Ford – Mazda
The Ford-Mazda alliance has created the duratec He/Mzr engines. These engines are widespread and installed on series models such as Mazda 3 and Mazda 6 of the first two generations, Focus and Mondeo of previous generations. These engines reach 150,000 -200,000 km. They are sensitive to the lack of oil and overheating. Sports guide significantly increases oil consumption. This type of engines is not oversized. For Ford, spare parts are not available separately. Fortunately, there are similar pieces of Mazda for sale. There are also spare parts negotiable on the market. The cost of revision of the engines is average.
7th place. Volkswagen
The FSI 2.0 engines have been installed on many VW concern models, the most common is Golf V, Passat B6, Skoda Octavia and the second generation Audi A3. The average duration of the engine is 150,000 km. Engineers evaluate the quality of the components at an average level. Like BMW engines, FSI 2.0 engines, due to the technical complex design, do not shine in reliability. The equipment for direct injection fuels are capricious. Injectors and injection pumps are expensive and short -term, 100,000 km fall. Even more, due to a design error of the energy supply system, there is an unequal wear of the cylinders. Already after 120,000 km the cylinder has the shape of a barrel due to wear. Another direct injection defect would be: fuel does not eliminate carbon deposits from the suction valves. Sooner or later, this leads to an incomplete closure and an unstable engine, especially in winter. The situation is aggravated by the rapid wear of the valves guides (as in the BMW engines), which leads to an increase in oil consumption. The original parts of this engine have high prices, but they are no longer expensive than those for the BMW.
8th place. BMW
The BMW engines in the N43, N45 and N46 series belong to the same family, although they are different from the structure. Their main journalists: the representatives 381i, 320i (E90) and 520i (E60)-representatives of the penultimate BMW from the 3rd and 5th series are representatives. The average duration of the duration of the wear of the cylinder pistons group is estimated in less than 150,000 km, the quality of the parts is not remarkable. The engines are technically complex for their time, perhaps even more. They have many systems and ensembles that become capricious just before the natural wear of the cylinders and piston rings. The engines are structurally prone to the consumption of oil, some defects worsen the situation. Due to the failure of the rubber diaphragm of the ventilation valve, the oil begins to enter the suction tunnel, the car that pulls smoke as a carbon locomotive. At 100.0000 km of rolling, due to the wear and tear, there is an increase in the game of the valves of the distribution system, following the penetration of the oil through the elements of sealing the valve auction, entering directly into the combustion chamber. In addition, the incomplete closure of the valve leads to defects and interruptions during the cold start of the winter engine. The components of the distribution system do not reach up to 150,000 km. The lifting system of the suction valve (Valvetronica) is capricious. BMW engines have no factory review size, but only normal sharing. In the case of the wear of the cylinder walls, they are chosen while keeping the nominal dimension of the piston group simultaneously. Unfortunately, spare parts for BMW engines are by far the most expensive and there are no analogies for them. Reviewing these engines is the most expensive.
2. The best aspirated petrol engines
The performance and reliability of aspiring engines have been known for a long time. The aspirated petrol engines are internal combustion engines in which air intake depends only on atmospheric pressure, not having auxiliary component (turbine or compressor) to put more air. With fewer components, they have a low risk of malfunction.
The choice of cars with natural aspiration is large enough in the interval of 1.4-2.0 liters these engines that we meet in the cars:
- VW Group – 1.4 16V SI 1.6 8V
- Opel – 1.6 SI 1.8 Ecotec
- PSA group – 1.6 TU5 SI 2.0 EW
The design of these engines was developed in the 90s.
In many respects, the development of engines with natural aspiration depends on respect for environmental standards. If the manufacturers manage to reduce emissions based on increasingly rigid standards, the propulsion groups aspirated naturally will continue to develop and, otherwise, only a memory will remain.
| Nr CRT | Motors / Automobile brand | Capacity
in liters |
Cp | Strengths | Weaknesses |
| 1 | BMW N46 | 2.0 | 129, 143,150 and 170 | High performance
Reasonable fuel consumption Successful engine especially version of 2 l |
The area of the problem is the synchronization tensor. Dynamic and with melodic sound, demonstrating decent durability |
| 2 | BMW M54 | 2.5 – 3.0 | 170 | One of the best German engines in recent years, we find BMW Series 1, 2, 3, as well as X3, X5 and Z4 | Increase in oil consumption that is sometimes burned by the engine |
| 3 | Volkswagen | 1.4 16V | 86 | Improved engine, excellent for daily use | – |
| 4 | Volkswagen | 1.6 8V | 102 | Beautiful engine with simple design | High fuel consumption. Damage to the ignition coils |
| 5 | Citroen/peugeot | 1.6 TU5, JP4 | 109 | Harmonious combination of consumption and dynamic | Oil leaks |
| 6 | Citroen/peugeot | 2.0 EW | 140 | Stable operation, no problem | – |
| 7 | Ford Zetec | 1.6 | Cheap to repair and durable | – | |
| 8 | Ford Duratec | 2.0 | Reliable | High fuel consumption | |
| 9 | Honda | 1.8 You 2.0 R | 140 and 155 | Have the camshaft and the durable chain and do not approve the disadvantage | – |
| 10 | Honda K24 | 2.4 | 200 | A powerful engine, in particular the K24A2 and K24A3 series | High oil consumption |
| 11 | Lexus ar | 2.5 | 208 | It is reliable, the chain resists serious stress | Liquid cooling pump |
| 12 | Mazda | 2.0 | 120-165 | Reliable cheap and dynamic | – |
| 13 | Mazda | 2.5 | 192 | Decent dynamic | – |
| 14 | Mitsubishi 4B1 | 1.8 and 2.0 | 143-190 | Destroy the oil ship by corrosion
Increase in fuel consumption |
|
| 15 | Nissan HR | 1.6 | 113 | Engine with extraordinarily positive reviews | – |
| 16 | Nissan Mr | 2.0 | 133-147 | Economic and durable engine of success and dynamic | – |
| 17 | Opel Z/A16xer | 1.6 | 115 | Low fuel consumption, low cost maintenance | – |
| 18 | Opel Z/A18xer | 1.8 | 140 | Low maintenance of low -cost fuel consumption | – |
| 19 | Subaru (EJ/FB20) | 2.0 | 150 | Duration, reliability and low consumption | – |
| 20 | Toyota ZR | 1.6 -2.0 | 98-217 | Reliable and resistant | Premature wear of drug dealers |
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