Frequently Asked Questions About Peterbilt 362 Diesel Fuel Tanks

What size fuel tanks are available for my Peterbilt 362, and how do I determine the right capacity?

Peterbilt 362 fuel tanks typically range from 50 to 150 gallons per tank. The most common sizes are 75, 100, and 120-gallon tanks. To determine the right capacity, consider your typical route distances and fuel availability. Long-haul drivers often prefer dual 120-gallon setups for extended range, while regional drivers may find 75-100 gallon tanks sufficient. Check your frame rails for existing mounting brackets - standard spacing is 26 inches for most 362 models from 1980-1987.

Will aftermarket fuel tanks fit my specific year Peterbilt 362?

Most aftermarket fuel tanks are designed to fit Peterbilt 362 models from 1980-1987, but mounting configurations can vary. Models from 1980-1983 typically use 3-bolt strap hangers, while 1984-1987 models often feature 4-bolt configurations. Always verify your truck's specific mounting style and measure the distance between frame rail brackets before ordering. Tanks with adjustable mounting straps offer the most flexibility for different model years.

What's the difference between aluminum and steel fuel tanks, and which should I choose?

Aluminum tanks are 40-50% lighter than steel, improving fuel economy and payload capacity. They resist corrosion better but cost 20-30% more upfront. Steel tanks are more affordable and highly durable against impacts but require regular inspection for rust, especially in salt-prone regions. For trucks operating in harsh winter conditions or coastal areas, aluminum is worth the investment. Steel remains popular for local operations where weight savings are less critical.

Can I install replacement fuel tanks myself, or do I need professional help?

While experienced mechanics can install fuel tanks themselves, professional installation is recommended for safety and compliance reasons. Installation requires draining existing tanks, disconnecting fuel lines, removing old tanks, mounting new tanks with proper torque specifications (typically 45-55 ft-lbs for strap bolts), and ensuring proper fuel line routing. DOT regulations require specific clearances and secure mounting. Most installations take 3-4 hours per tank with proper equipment including tank jacks and fuel transfer pumps.

How do I match the finish of new fuel tanks to my existing truck?

Fuel tanks come in three main finishes: polished aluminum, brushed aluminum, and painted steel. Polished aluminum requires regular maintenance but provides the classic chrome-like appearance. Brushed aluminum offers a maintenance-free satin finish that hides minor scratches. Painted steel tanks can be color-matched to your cab - provide your paint code when ordering. For the best match with older trucks, consider having aluminum tanks professionally polished or steel tanks painted locally after installation.