I used Valvoline VV155 MaxLife SAE 5w30 Motor Oil in my 1990 acura legend
Some parts are, the 2.7liter is but some of it's electrical components are not
In the gas tank
the firing order is 1342
firing order is1432
1,3,2,4 that is the firing order.
Remove the belt from your 1990 Acura Legend alternator. Remove the wiring harness from the back of the alternator. Remove the alternator retaining bolts. Reverse the process to install the new alternator.
diagram of firing order on a 1990 Oldsmobile cutless 3.3 engine
its probably the main relay that needs to be replaced
Vegetable Oil for the rice burner.
The transmission filter is not in the pan like most other vehicles. On a 1990 acura legend it's an inline filter kinda looks like a fuel filter but located by the radiator.