Hi, I have a new to me boat with a 1999 Mercury 125 hp, Serial Number 0G866781 I would like to know what oil to use and also what gear oil. Also, I feel stupid asking...is this motor a 2 stroke or a 4 stroke? Thanks for any help.
Hi, I have a new to me boat with a 1999 Mercury 125 hp, Serial Number 0G866781 I would like to know what oil to use and also what gear oil. Also, I feel stupid asking...is this motor a 2 stroke or a 4 stroke? Thanks for any help.
'94 Ranger Sport R70\'99 Mercury 125\'05 Chevy Z71
I have the 98 model of that engine, it's a two stroke, 4 cylinder carburated engine. On top of the cowling is a lid to access the oil reservoir, under that you will see another cap that has a dipstick attached to it, I find it easier to just remove the cowl to fill the reservoir. Any good TCW3 oil will be fine, I run Pennzoil, and for the lower unit lube I use Mercury High Performance gear lube.
Thank you for the info
'94 Ranger Sport R70\'99 Mercury 125\'05 Chevy Z71
If you want to run Mercury’s oil, Mercury (or Quicksilver as it is the same) Premium Plus is best. If you do not, then Pennzoil XLF is good one too.
USN Retired
2020 Basscat Caracal
2020 Mercury 225 ProXS 4s
Reply With Quote