old chrysler 35 hp

Tad

Cadet
Joined
Jul 1, 2002
Messages
10
Iv'e got an early 70's Sea King 35 hp, can i run TCW-3 synthetic oil at 50:1 in it? Thanks-Tad
 

Terry H

Lieutenant Commander
Joined
Sep 25, 2001
Messages
1,862
Re: old chrysler 35 hp

That would be the proper feed for that motor...just a Thought
 

rbruce63

Petty Officer 1st Class
Joined
Aug 30, 2003
Messages
212
Re: old chrysler 35 hp

Would synthetic oil be compatible with your vintage SeaKing? My 1969 Chrysler 20 HP is using TCWIII just now, before, what my father bought from the dealer, I do not think there were TCW oils then, just straight SAE 30 motor oil. I don't think it will make a difference except for the burnt smell of hard earned cash that could be spent in PFD's!
 

scotiany

Senior Chief Petty Officer
Joined
Aug 3, 2002
Messages
749
Re: old chrysler 35 hp

I'm using non synthetic TCW-3. My '70 Chrysler owners manual says to use a 40W outboard motor oil.
 

force01

Petty Officer 2nd Class
Joined
Aug 12, 2003
Messages
152
Re: old chrysler 35 hp

For all force and chrysler outboard engine owners my personal preference is quicksilver premium plus tcw3 outboard oil and the best gas your town can sell and highest octane the second choice on outboard oil would be chevron premium plus tc3 and of course all force and chrysler outboards are 50:1 mix. Good oil is expensive but it sure can save a power head. Bret<br /><br /> If you need further assistance please email me @ forcepower01@yahoo.com. thanks,Bret
 

steelespike

Supreme Mariner
Joined
Apr 26, 2002
Messages
19,069
Re: old chrysler 35 hp

A properly tuned outboard will run best on the octane it is rated for.Usually 87.Running too<br />high an octane is truly a waste of money.<br />In my opinion synthetic oils main advantage is low<br />carbon/ash and they are considered biodegradable.
 

rbruce63

Petty Officer 1st Class
Joined
Aug 30, 2003
Messages
212
Re: old chrysler 35 hp

Force 1:<br /><br />Have you ever used Johnson XD5 on your Force or Chrysler engines. Johnson (a subsidiary of Bombardier) claims it has 25% more additives than any other brand.<br /><br />The problem is that only in the long run you can assess if your choice of oil was good or bad for the motor. If you know how to determine if oil is good or bad before hand, please let me know.
 

txbasshntr

Seaman Apprentice
Joined
Sep 13, 2003
Messages
34
Re: old chrysler 35 hp

i dont know about anyone else but i have trouble using pennzoil synthetic in my 71 chrysler 70hp<br />it doesnt seem to burn off and leaves a film on my plugs but quicksilver has never let me down
 

force01

Petty Officer 2nd Class
Joined
Aug 12, 2003
Messages
152
Re: old chrysler 35 hp

RBRUCE,<br />One of my friends dads is chemical engineer for one of the big refineries another friend owns a shop that the big C oil company buys their outboards from to do their testing and some input from friends inside mercury and my 20 yrs of rebuilding outboards and asking customers what they have been running for fuel and oil. this is how i have come to my earlier post. thanks, bret
 
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