Toyota: All Our Cars (<10yr Old) Can Run On E20 Without Problem | V3Cars

It’s worth noting that ethanol attracts moisture from the air and can accelerate the corrosion in the fuel lines, injectors, engine cylinders and exhaust plumbing. So, blending even 20% ethanol makes the flex fuel affects the long-term reliability of the vehicle. To keep the vehicle’s reliability intact, carmakers need to implement anti-corrosion coatings and layers.

If you use E20 in a regular petrol car, then you should expect some rusting-related issues in the powertrain components crop up during the ownership. It’ll poorly affect the reliability of the vehicle and your ownership experience.

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While we didn’t get a direct answer, in response to our question, Mr. Vikram Gulati, country head and SVP of Toyota said, “We test our vehicles in the roughest conditions and engineer them to operate reliably beyond our customer’s expectations. Because of that initial engineering effort we have put in, you can run any of our cars from 2013 or later on E20 fuel without any problems for the rest of the vehicle life.”

We’re assuming that ‘life’ here refers to the typical 15-year initial registration period of a vehicle. Still, buying any Toyota petrol car and running it problem-free on the E20 flex fuel for up to 15 years is a remarkable achievement. And that’s before they have made any accommodations to account for the 20% ethanol blend. Once they roll out their cars with the necessary modifications, we should expect even longer reliability. We have no reason to doubt Toyota’s claims here since reliability and smooth ownership experience are their strengths.

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