The official Diamond Valley Lake web site

homeabout dvldirectionslinks

Boat Requirements

MTBE Free Fuel.

Metropolitan has banned fuels containing MTBE from the lake. Only gasoline free of the additive MTBE is allowed. Boats containing MTBE fuel will be turned away. The California Air Resources Board has reported that MTBE was removed from all gasoline refined for sale in California in Nov. 2003. Therefore, all gasoline must be purchased in California and proof of purchase will be required for boats with out-of-state registration. Refueling is prohibited except in designated areas.

For those who cannot burn up the MTBE fuel in their tanks, or who are looking for a completely worry-free day on the water, rental boats are available at Diamond Valley Lake.


Engine Requirements.

To be allowed onto the reservoirs, you’ll need the cleaner burning models that comply with California Air Resources Board emission standards for model year 2001 or later (or the equivalent 2006 standard set by the U.S. Environmental Protection Agency)

With the exception of personal watercraft, all four-cycle engines (regardless of year) are allowed on DVL and Lake Skinner.

If your engine is model year 2001 or later , and made by the following major marine engine manufacturers , it should comply:

  • Johnson and Evinrude.
  • Honda Motor Corp.
  • Yamaha Motor Corp.
  • Suzuki Motor Corp.
  • Tohatsu Corp.
  • Mercury Marine.
  • Nissan Marine.

If you are still not sure look for the stars New technology engines (model year 2001 and later) have a one-to-three star decal showing they comply with emission standards. Or check for the label EPA-certified engines from 1998 to 2000 display an Emission Control Information label that shows it complies with 2001  (or later) California emission regulations for spark-ignition marine engines.

For supporting details, check the owner's manual or the manufacturer's Web site. 

What about pre-1998 engines?

Pre-1998 two-cycle engines that use carburetors or electronic fuel injection (EFI) technology, will not comply with the combustion engine requirements for use on DVL or Lake Skinner.

If you’re not sure, contact the California Air Resources Board.

Boat Specifications for DVL and Lake Skinner

  • Boats must be at least 12 feet long, 42 inches wide, with 12 inches of freeboard at idle speed.
  • Kayaks and canoes must be at least 10 feet long, non-bailing and seating for all passengers. Sit-on-top kayaks are prohibited.
  • Catamarans and other multi-hulled boats must have solid and fixed decking.
  • Speed limit for all watercraft is 25 mph. The maximum speed within 200 feet of the shoreline is 5 mph. At Lake Skinner, the speed limit is 10 mph, while the maximum speed within 100 feet of the shore is 5 mph.
  • Boats with four-stroke or direct-fuel-injection, two-stroke engines are allowed. Traditional carbureted or electronic fuel injection (EFI) two-stroke engines are prohibited.

Click here to view examples of boats which are allowed on Diamond Valley Lake

Click here for a full list of rules and regulations for Diamond Valley Lake and Lake Skinner.

Click here for boat rental fees.