Trailer side skirts or side fairings prevent air from becoming trapped beneath the trailer and bumping against the undercarriage. Some manufacturers claim they can improve fuel economy by up to 8%. Their effectiveness is highly dependent on how they are installed and how close to the ground and the undercarriage they get. Obviously, maintenance has to be considered when choosing such a product.
Trailer side skirts or side fairings prevent air from becoming trapped beneath the trailer and bumping against the undercarriage. Some manufacturers claim they can improve fuel economy by up to 8%. Their effectiveness is highly dependent on how they are installed and how close to the ground and the undercarriage they get. Obviously, maintenance has to be considered when choosing such a product.
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