Go Back   Maxum Boat Owners Club - Forum > Maxum General > Maxum Maintenance
Click Here to Login
Register FAQ Community Calendar Today's Posts Log in

Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-16-2011, 11:52 PM   #1
Lt. JG
 
Join Date: Jul 2009
Posts: 38
Default mercury 25/40 engine oil for gas engines sterndrives

the container says change engine oil a mininum of every 100 hours, then in the next sentence it says or once a season? if i put on 25 engine hours this past summer what is the reasoning for the once a season?
__________________

spud123 is offline   Reply With Quote
Old 10-17-2011, 12:53 PM   #2
Lt. JG
 
Join Date: Feb 2011
Posts: 25
Default

Combustion byproducts make their way into the oil and make it acidic.
The change at the end of the season is to prevent that acidic oil from scarring your internals.
__________________

paulswagelock is offline   Reply With Quote
Old 10-17-2011, 02:28 PM   #3
Admiral
 
biggerseagar's Avatar
 
Join Date: Dec 2010
Location: central Illinois
Posts: 2,294
Default

Figure this .........how much did you pay for your boat and how much would it cost you to buy a new engine........then figure how little it is to buy 5 qts and and filter to change in the fall before your boat away........Alittle preventative goes along way. You don't what the acidic oil sitting in the bottom of your oil pan and inside your engine because it will shortin the life of all those parts.

I only put 11 hours on my boat this year.......still both engines got fresh oil and filters and are ready to go for the next season........It is worth it!

Roger
biggerseagar is offline   Reply With Quote
Old 10-17-2011, 02:49 PM   #4
Lt. JG
 
Join Date: Jul 2009
Posts: 38
Default

thank you for your wisdom, i had full intentions on replacing the oil, i just found it sort of confusion and contradictory the labeling on the mercury jug?
spud123 is offline   Reply With Quote
Old 10-17-2011, 02:59 PM   #5
Moderator

 
shrew's Avatar
 
Join Date: Apr 2008
Posts: 5,691
Default

No different than a car manufacurer advising; "3,000 miles or 3 months". Whichever comes first, NOT whichever comes last.
shrew is offline   Reply With Quote
Old 10-17-2011, 04:25 PM   #6
Admiral
 
biggerseagar's Avatar
 
Join Date: Dec 2010
Location: central Illinois
Posts: 2,294
Default

Spud ....Just trying to help..........I have a friend who bought a brand new Chapperal about 8 years ago and he does it diferently...........he doesn't change his engine oil and doesn't change the drive oil in the fall, instead he waits for the oil 50 hours and whenever that happen then he changes...........his choice......would not be mine but again his choice.

I'm no mechanical engineer but I would guess in the next 5 or 6 years we will see if this good process.

Roger
__________________

biggerseagar is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 08:33 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.