2005 Moomba LSV Indmar 310 Assault Complete Winterization Procedure
(carbureted models)
Shopping List / Stuff you need
- 6 Quarts Penzoil 15W40 Marine oil (5.5 quarts required).
-or-
6 Quarts Rotella 15W40 Heavy duty oil is also acceptable.
- Penzoil PZ3, Fram PH30, Qaker Satate QS30, Purolator L20049, NAPA 1069…
- 3 Gallons RV / Bio degradable antifreeze
- 1 Quart Penzoil SAE30 or equivalent (Walters Vdrive takes .5 quart)
- Marine fogging oil
- Sta-bil marine fuel treatment
- 2 Quarts Dexron III ATF (Dexron VI is backwards compatible)
- Fluid evacuator / extractor (if you need one). Must have ¼” hose to fit dip stick hole.
- Oil filter wrench.
- 5 gallon bucket
- 3.5 foot radiator hose (1.25” interior diameter). This hooks up to raw water intake.

Winterization Procedure
{With boat still in the water or at water level in the boatlift}

1. Use fluid extractor to remove transmission ATF (ZF Hurth). Cold engine is fine. There is a cover on the underside of the transmission which can be removed and a screen inside which can be cleaned. This is hard to get to. Fill transmission with up to 2 quarts ATF – checking the level as you go.

2. Use fluid extractor to remove V-drive oil (suck out dip stick hole). Cold engine is fine. Fill reservoir from fill fitting (not dip stick). This should take ½ quart Check level as as you go.

3. Run motor up to temperature (180 degrees) then shut motor off. Use fluid extractor to remove engine oil - running the hose down the dip stick.

4. Remove and replace the oil filter using the filter wrench. Smear some new oil on the rim of the new filter along the rubber gasket.

5. Fill oil with 5.5 quarts Penzoil 15W40 Marine oil. Rotella 15W40 works also. Check the level of the oil and make sure it is in the operating range.

6. Drive boat to launch and load on trailer. (bring RV antifreeze, 5 gal bucket and the 3.5 ft. radiator hose)

{After boat is out of the water and on trailer – Engine should be hot}

7. Unscrew water strainer from water intake and clean screen and replace.

8. Remove the housing from the carburetor and air filter.

9. While engine is still hot, fill 5 gallon bucket with the RV antifreeze.
**Note – If engine is not hot, you will need to run the boat with water in the bucket until engine comes up to temperature (180 degrees).

10. Remove hose from raw water intake and put the 3.5 ft. radiator hose on the raw water intake pump and insert the hose into the bucket.

11. With your fogging oil handy, start the motor and let the RV antifreeze be sucked into the motor. **Note – it sucks it down fast. When there is about 4” of antifreeze left in the bucket, start spraying the fogging oil into the carburetor which should kill the engine by the time the antifreeze is gone.

12. Remove the front nut on the V-drive and drain. Remove the rear nut on the V-drive and drain. (Not sure if antifreeze is sucked into V-drive but it is water cooled. If so, this step is not necessary)

13. Remove your ballast bags, remove the ballast water strainer and clean the screen then replace the strainer. Drain ballast fill hoses (blow out lines), then run the pumps for a few seconds on empty to make sure the pumps are dry.

14. Add Sta-bil marine fuel stabilizer to your gas tank (use amount appropriate for the level of fuel in the tank).

15. Check air pressure in your trailer tires and top off if necessary. You are now ready to do the final cleaning and ready for winter layup.