MAINTENANCE
SERVICE MANUAL NUMBER 23
Coolant for Closed Cooling System
CAUTION
Alcohol or Methanol base antifreeze or plain water, are not recommended for use
in fresh water section of cooling system at any time.
We recommend that the coolant section of closed cooling system be filled with Extended
Life Ethylene Glycol 5/100 Antifreeze/Coolant mixed 50/50 with purified water. In areas
where the possibility of freezing does not exist, it is permissible to use a solution of rust inhi-
bitor and water (mixed to manufacturer’s recommendations).
If any non-compatible coolant is added to this coolant, coolant must be changed every 2
years or 400 hours, whichever occurs first. All coolants other than Extended Life 5/100
Ethylene Glycol Antifreeze/Coolant must be changed every 2 years or 400 hours, whichever
occurs first.
MerCruiser V-8 engines can use any type of permanent antifreeze or any brand antifreeze
solution that meets GM specification 1825M.
CA693
Crankcase Oil
To help obtain optimum engine performance and to provide maximum protection, we
strongly recommend the use of Quicksilver 4-Cycle 25W-40 Marine Engine Oil. This oil is
a special blend of 25-weight and 40-weight oils for marine engines. If not available, a good
grade, straight weight, detergent automotive oil of correct viscosity, with an API
classification of SH, CF/CF-2, may be used.
In those areas where Quicksilver 4-Cycle 25W-40 Marine Engine Oil or a recommended
straight weight oil are not available, a multi-viscosity 20W-40 or, as a second but less prefer-
able choice, 20W-50, with API service ratings of SH, CF/CF-2 may be used.
IMPORTANT: The use of non-detergent oils, multi-viscosity oils (other than Quicksil-
ver 25W-40 or a good quality 20W-40 or 20W-50), synthetic oils, low quality oils or oils
that contain solid additives are specifically not recommended.
The chart below is a guide to crankcase oil selection. The oil filter should always be changed
when changing engine oil.
Quicksilver 4-Cycle 25W-40 Marine Engine Oil
SAE 40W
SAE 30W
SAE 20W
° F
° C
50
10
° F
° C
32
0
75796
AIR TEMPERATURE
Index
Page 1B-16
90-861326--1 MARCH 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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Marine readers have rated Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 5.0 out of 5.0 based on 1 product reviews. Just need the manual. Wrote review. Can't technically review what I haven't seen yet...