Mercury 350 MAG - Alpha Sterndrive; Bravo Sterndrives; Power-Assisted Steering and Power Trim Fluids; Approved Power Trim Fluids

Section 4 - Specifications
Page 70 90-8M0050539 eng MAY 2011
350 MAG and 377 MAG models Capacity Fluid Type
Engine oil (with filter) 4.25 L (4.5 US qt) Mercury MerCruiser Full‑Synthetic Engine Oil, 20W‑40
Seawater cooling system (winterization use
only)
20 L (21 US qt) Propylene glycol and purified water
Closed cooling system 19 L (20 US qt)
Mercury Extended Life Coolant Antifreeze or extended‑life
ethylene glycol 5/100 antifreeze mixed 50/50 with purified
water
Alpha Sterndrive
NOTE: Oil capacity includes gear lube monitor.
Model Capacity Fluid Type
Alpha One 1892 mL (64 oz) High Performance Gear Lubricant
Bravo Sterndrives
NOTE: Oil capacity includes gear lube monitor.
Model Capacity Fluid Type
Bravo One 2736 mL (92‑1/2 oz)
High Performance Gear Lubricant
Bravo Two 3209 mL (108‑1/2 oz)
Bravo Three (single seawater pickup) 2972 mL (100‑1/2 oz)
Bravo Three (dual seawater pickup) 2736 mL (92‑1/2 oz)
Power‑Assisted Steering and Power Trim Fluids
Approved Power-Assisted Steering Fluids
Description Part Number
Power Trim and Steering Fluid 92‑858074K01
Approved Power Trim Fluids
Description Part Number
Power Trim and Steering Fluid 92‑858074K01
SAE Engine Oil 10W‑30
Obtain locally
SAE Engine Oil 10W‑40