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79 S@S rda
08-29-2011, 09:31 PM
So can anyone with a 351 S&S tell me how many quarts of oil you put in on your oil change. I got mine as a basket case and did not have the dip stick. I bought a after markert stick but dont think its right. Will remark it when I know how much you guys put in. I have built the engine and added 4.5 quarts to prime the filter and galleys, but knowing the correct amount will put my mind at ease when I fire it up later this week.

thatsmrmastercraft
08-29-2011, 09:35 PM
It will take 5 quarts if you get all the oil out, though that can be a little difficult unless you have a drain line from the oil pan. If you are using a drill pump or a vacuum extractor it is usually closer to 4 1/2 quarts.

79 S@S rda
08-29-2011, 09:44 PM
Fresh rebuild so 5 quarts should be good I assume or whould I have another 1/2 in it for the filter?

thatsmrmastercraft
08-29-2011, 09:47 PM
As far as I know, just the 5 quarts.

79 S@S rda
08-29-2011, 09:52 PM
Thank you very much. I appreciate it.

thatsmrmastercraft
08-29-2011, 09:59 PM
No problem. How about some pics of this boat?

MissileMech
08-30-2011, 12:03 AM
If you are removing the drain plug than 5 qts. If you have a drain line hooked up than 5 qts will probably be too much. Too be sure pull the plug and fill with 5 and then you can check the calibration of the new dipstick.

TNPIG
08-30-2011, 01:55 PM
Quick question. I've seen where 50 hours seems to be the majic number for an oil change. What if you only put say 15 hours on the boat during the season? Should you still change the oil next Spring, or just change it out once you hit 50? Thanks

BrianM
08-30-2011, 03:49 PM
Change it every 50 hours or once a season. If I don't put 50 on mine in a season I do the oil change before winter that way it doesnt sit with old oil and all I have to do is fire it up and go in the spring.

MissileMech
08-30-2011, 06:01 PM
Oil continues to oxidize over time and it containes corrosive contaminants from combustion so it is best to change it at the end of the season. New oil will do fine over the winter (the colder the less oxidation) so you don't have to change it in the spring. However, 15 hrs isn't a lot so if you decided to leave it in it probably would be ok. It just depends on your comfort level.

ted shred
08-30-2011, 07:03 PM
My owners manual says 5 qts, but four always fills it to the top mark on the dipstick. I always check the level in the water.