English 
Spanish 
5 min read
30 comments
The oil-bathed timing belt, a component that replaced the old dry belts in models such as the Chevrolet Onix, Tracker and Montana, was once seen as a promising technological innovation.
However, with reports of problems and high maintenance costs, the part's reputation has been tarnished. Now, General Motors (GM) bet big to change this narrative: the automaker announced an extended warranty to an impressive 240 kilometers, with no time limit.
With this measure, Chevrolet is trying to transform a source of criticism into a symbol of trust and durability.
According to information obtained by the magazine Four wheels and confirmed by General Motors do Brasil, the new warranty applies to vehicles manufactured from 2020 onwards, whether new or used.
- Special price: Chevrolet Onix LT for R$ 39.454! Model leaves rivals behind in 2025 with consumption of 12,5 km/l and up to 675 km of autonomy
- Video shows clumsy driver crashing world's highest-mileage Ferrari F40 on straight road
- Looking for a used SUV that is good-looking, spacious and powerful? The Hyundai ix35 GLS with a 2.0 flex engine, 167 hp and a 465-liter trunk is the perfect model for those looking for a comfortable and reliable car.
- SIX reasons why you should buy a Fiat Uno Mille in 2025
The timing belt now has full coverage for up to 240 kilometers, exactly the period recommended in the owner's manual for its replacement.
Previously, the warranty period was limited to 100 kilometers or three years of use, whichever came first.
This significant change is an effort by Chevrolet to show that it has full confidence in its technology, while also seeking to attract new customers.
But the warranty does not come without conditions. In order for owners to enjoy the benefit, it is necessary to strictly follow the maintenance plan required by the brand.
This includes carrying out all inspections at authorized dealerships and using Dexos 1 GEN 3 lubricant, an oil specially developed to protect the oil-bathed timing belt.
Why is the oil-bathed belt so controversial?
Introduced as an evolution of traditional belts, the oil-bathed version is known for offering important advantages, such as greater durability, lower noise and reduced fuel consumption.
However, the component has also presented challenges since its implementation.
One of the main problems reported by consumers involves premature wear of the part, which in some cases occurred well before the recommended replacement date.
These failures often result in costly repairs, fueling criticism about the technology's reliability.
In addition, many owners complained about the dependence on dealership inspections and the high cost of specific lubricant.
These factors contributed to the component's bad reputation and led to a perception that it would be more problematic than beneficial.
What makes the extended warranty relevant?
The decision to extend the warranty is not only a response to criticism, but also a way to Chevrolet demonstrates confidence in its technology.
Covering such a long period, without imposing a time limit, is a bold approach that few automakers dare to take.
For Chevrolet, this measure could translate into double benefits: improving the brand image and reducing consumer distrust.
As GM highlighted, the main objective is to show that the problems previously reported do not represent systemic failures, but rather isolated cases that may have been caused by inadequate maintenance or the use of non-recommended lubricants.
The impact on the Brazilian market
The automotive market in Brazil is known for its fierce competitiveness and the demanding profile of consumers, who seek durable, economical vehicles with low maintenance requirements.
In this context, Chevrolet's decision to extend the warranty could significantly influence consumer choices.
By offering longer coverage, the brand positions itself as a reliable option for those seeking security and peace of mind.
Furthermore, this initiative may pressure other automakers to review their warranty policies, especially for components considered critical.
This movement can directly benefit consumers by raising the standard of quality and service offered by brands.
Cutting-edge Chevrolet technology or risky bet?
Despite the confidence shown by Chevrolet, the oil-bathed timing belt is still viewed with skepticism by experts.
Although their theoretical durability is greater than that of traditional belts, their sensitivity to adverse conditions, such as the use of unsuitable oils or lack of maintenance, raises doubts about their long-term viability.
On the other hand, Chevrolet argues that, when used correctly, the part offers benefits that outweigh its disadvantages.
The automaker is betting on consumer awareness to ensure that the technology is used correctly, reducing the risk of failure.
Awareness as a strategy
In addition to the extended warranty, Chevrolet has invested in educational campaigns to guide owners on the importance of following the recommendations in the vehicle manual.
These actions include explanatory materials, informative videos and training for dealership teams, with the aim of ensuring that consumers understand the importance of using the correct lubricant and carrying out inspections within the stipulated deadlines.
A model for the future?
If Chevrolet's strategy is successful, it could become a model to be followed by other automakers in Brazil and around the world.
Longer warranties and a focus on consumer education can be important differentiators in an increasingly competitive market.
On the other hand, if the problems persist, the brand runs the risk of further damaging its image, especially among more demanding consumers.
The cost-benefit ratio of maintenance
Another important aspect of this discussion is the financial impact on homeowners.
Although the initial maintenance cost is higher due to the requirement for dealership checks and the use of specific lubricant, Chevrolet argues that the increased durability of the belt compensates for this investment over time.
However, it remains to be seen whether this perception will be shared by consumers, especially those who have had negative experiences with the technology in the past.
Will the new guarantee be enough to change public opinion?
By extending the warranty to 240 kilometers, Chevrolet is taking a bold step to regain the trust of its customers.
But the question remains: Will this measure be enough to put an end to criticism and consolidate the reputation of the oil-immersed timing belt as a reliable technology?
With the market attentive and consumers demanding, the answer to this question will be decisive for the future of Chevrolet in Brazil.
A vehicle with an oil-immersed timing belt engine will never be any good! A terrible design error by the manufacturers, nothing is better than a chain belt, which would be the right thing to do when assembling engines.
In Mexico, it's a chain of command, they dump trash for Brazilians
I am an automotive technician, graduated from cimatec, Salvador Bahia, I work in the automotive maintenance area and I saw that when changing the oil in the Onix Plus engine and removing the crankcase, half a liter of oil is left without being drained. Doesn't this complicate things since I am putting new oil over half a liter of already contaminated oil?
Good morning, I'm Wanderlei, an Aircraft Engine Mechanic Technician. The answer to your question, my dear friend, is “YES”!
It would affect the time of use of the next lubricant as it would start to be used with a part already worn out!