Re: lower gearcase
You DON"t say what year the 9.9 is. There is NO "electric shift" on your 9.9, regardless of year.
BUY NEW FILL/DRAIN plug seals, and a few extras.
OMC/BRP Premium Blend is right for that engine.
There are others but I NEVER recommend other than OEM.
do you also use brp 2-stroke oil in the fuel? I know people that use wal-mart brand oil for everything and never had any troubles. What is the weight of the OMC/BRP LU oil?
Found this from pennzoil's website here:
http://www.pennzoil.com/documents/Pennzoil Marine Power Trim and Tilt Fluid.pdf
This has got me wondering if I'm using the correct LU oil as well.......
APPLICATION
PENNZOIL MARINE? OUTBOARD GEAR LUBE may be used in all outboard gear cases where an SAE 80W-90 API
GL-4 gear lubricant or older Type C is specified. Older models (prior to 1978) sometimes require special products. Check
your owner's manual for any models over ten years old. Johnson and Evinrude models with electric shift (1972 and earlier)
and pre-1977 OMC Stern Drive require Pennzoil ATF Automatic Transmission Fluid.
PENNZOIL MARINE? HIGH VISCOSITY LOWER UNIT GEAR LUBE may be used in lower units calling for a marine
grade SAE 80W-90 API GL-5 gear lubricant. It is also recommended for lower units that require an SAE 90 Hypoid
gear oil.
PENNZOIL MARINE? POWER TRIM & TILT FLUID is an all-purpose hydraulic fluid that may be used in trim and tilt
systems as well as power steering systems.
PENNZOIL? 100% SYNTHETIC* LOWER UNIT GEAR LUBE may be used in transmissions and lower units which
require an API GL-5 SAE 75W-90 gear oil.