Fuel Economy Spec! New 2021 Peterbilt 579 Ultralofts

Fuel Economy Spec! NEW 2021 Peterbilt 579 Ultralofts

Peterbilt of the Rockies

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ATBS

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No Luck Trucking

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Quick 175K Mile Update - 2021 Peterbilt 579 Ultraloft | Prime Inc.

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WALKAROUND: 2021 PETERBILT MODEL 579 ULTRALOFT

Midwest Peterbilt Group

WALKAROUND: 2021 PETERBILT MODEL 579 ULTRALOFT

Midwest Peterbilt Group

ALL NEW 2025 Peterbilt 579 Shocks The Entire Truck Industry!

2021 Peterbilt 579 Ultraloft - 50K Mile Review

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Midwest Peterbilt Group

New 2021 Peterbilt 579 | Walk Around & Review | Interior & Sleeper Exterior | Engine & Safety