Gmc 2004 Sierra User Manual download pdf (Page 404)

100

101

CAUTION: (Continued)

•

Be sure to use the proper nuts, bolts and

other fasteners. “English” and “metric”

fasteners can be easily confused. If you

use the wrong fasteners, parts can later

break or fall off. You could be hurt.

Adding Equipment to the Outside of

Your Vehicle

Things you might add to the outside of your vehicle can

affect the airﬂow around it. This may cause wind

noise and affect windshield washer performance. Check

with your dealer before adding equipment to the

outside of your vehicle.

Fuel

If your vehicle has a diesel engine, see “Diesel Fuel

Requirements and Fuel System” in the Diesel Engine

Supplement.

For vehicles with gasoline engines, please read this.

Gasoline Octane

Use regular unleaded gasoline with a posted octane

of 87 or higher. If the octane is less than 87, you may

get a heavy knocking noise when you drive. If this

occurs, use a gasoline rated at 87 octane or higher as

soon as possible. Otherwise, you might damage

your engine. A little pinging noise when you accelerate

or drive uphill is considered normal. This does not

indicate a problem exists or that a higher-octane fuel is

necessary. If you are using 87 octane or higher-octane

fuel and hear heavy knocking, your engine needs

service.

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Comments to this Manuals

DarrickSkede 09 Mar 2024 | 20:32:57

Hello Guys, Glad to Join! :)

Gmc 2004 Sierra User Manual Page 404

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