Jenson Button will take his second engine of the season for the Chinese Grand Prix this weekend after he suffered a failure on his first unit at the last event in Bahrain.
The Briton believes Honda took a step forward on the performance side at the last race, but warned they must not compromise on reliability.
"The Bahrain race weekend was bittersweet on my side of the garage," admitted Button. "Friday practice was a real positive, but unfortunately we couldn’t make it stick in qualifying and then suffered reliability issues in the race. Saying that, until the point when we lost power, the car had felt very good, and I’m hopeful that we can continue that momentum in Shanghai and make the most of the package we have.
"As always though, we need to work hard on our reliability. We’ve definitely seen an improvement in that area, but anything less than 100 per cent is never enough, and it’s important we take advantage of our progress to bring home the points we deserve and have something to show for all of our efforts."
Honda's Yusuke Hasegawa confirmed the need for a second engine – meaning both cars are now on their second units – and promised the issue that struck Button's car wouldn't repeat itself in future.
"There was a mechanical issue on Jenson's ICE which we will replace for the upcoming race weekend," he said. "The situation has been thoroughly investigated, and will be rectified in all future engines to be used."
