It is probably 10 degrees BTC, but it doesn't matter. It's non-adjustable. There is no distributer to adjust, the crank sensor cannot be moved. The cam sensor is set at the factory, and if it ever gets replaced, there is a special tool that will only allow you to install it at a predetermined position. The PCM does all the timing electronically.
According to the 1999 Mercury Sable Owner Guide : With engine oil filter change : The 3.0 liter Duratec ( DOHC ) V6 engine takes : ( 5.5 U.S. quarts of 5W-30 )
According to the 1998 Mercury Sable Owner Guide ( 5W-30 ) With engine oil filter change : The 3.0 liter " Vulcan " V6 engine takes ( 4.25 litres / 4.5 U.S. quarts of 5W-30 ) The 3.0 liter " Duratec " V6 engine takes ( 5.2 litres / 5.5 U.S. quarts of 5W-30 )
On a 1999 Mercury Sable : Relay # 30 is the Powertrain Control Module ( PCM ) relay
According to the 1999 Mercury Sable Owner Guide : 5W-30 engine oil is used in the 3.0 liter " Vulcan " V6 engine ( and also the 3.0 liter " Duratec " V6 engine ) * With engine oil filter change , the 3.0 liter " Vulcan " V6 engine takes 4.5 U.S. quarts / 4.25 liters of 5W-30
According to the 1999 Mercury Sable Owner Guide : ( 5W-30 )
The 1995 Mercury Sable would have come from the factory with ( 5W-30 ) oil in the engines
According to the 1999 Mercury Sable Owner Guide : For the 3.0 litre , DOHC , " Duratec " V6 engine : With engine oil filter change : ( 5.5 U.S. quarts of 5W-30 engine oil )
5W-30
On a 1999 Mercury Sable : In the fuse panel by the brake pedal : ( # 17 is a 30 amp fuse for the front wiper / washer )
5W-30 , according to the Owner Guide
( 5W-30 ) is the preferred oil , according to the Owner Guide
yes if the tires are 30 series or thinner