Add oil?
Race Director
Joined: Sep 2016
Posts: 13,180
Likes: 10,528
Anywhere between the high and low marks is OK, but if I were going to be running it hard I'd make sure it's at least halfway between those marks. As long as it's halfway or higher, no need to worry at all.
Race Director
Joined: Feb 2011
Posts: 14,742
Likes: 5,605
From: AZ
I am not sure how much the C8 LT3 engine varies based on oil temperature.
Race Director
Joined: Feb 2011
Posts: 14,742
Likes: 5,605
From: AZ
From 2020 owners manual
Capacities and Specifications
The following approximate capacities are given in metric and English conversions.
See Recommended Fluids and Lubricants 0 296.
Application
Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant charge
type and amount, see the refrigerant label under
the hood. See your dealer for more information.
Engine Cooling System with Performance Package* 21.5 L 22.7 qt
Engine Cooling System without Performance Package* 20.5 L 21.7 qt
Engine Oil with Filter 7.1 L 7.5 qt
Fuel Tank 70.0 L 18.5 gal
Wheel Nut Torque 190Y 140 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling
*Engine cooling system capacity values are based on the entire cooling system and its components.
Capacities and Specifications
The following approximate capacities are given in metric and English conversions.
See Recommended Fluids and Lubricants 0 296.
Application
Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant charge
type and amount, see the refrigerant label under
the hood. See your dealer for more information.
Engine Cooling System with Performance Package* 21.5 L 22.7 qt
Engine Cooling System without Performance Package* 20.5 L 21.7 qt
Engine Oil with Filter 7.1 L 7.5 qt
Fuel Tank 70.0 L 18.5 gal
Wheel Nut Torque 190Y 140 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling
*Engine cooling system capacity values are based on the entire cooling system and its components.
Race Director
Joined: Aug 2019
Posts: 12,351
Likes: 14,185
From: Central Illinois
From 2020 owners manual
Capacities and Specifications
The following approximate capacities are given in metric and English conversions.
See Recommended Fluids and Lubricants 0 296.
Application
Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant charge
type and amount, see the refrigerant label under
the hood. See your dealer for more information.
Engine Cooling System with Performance Package* 21.5 L 22.7 qt
Engine Cooling System without Performance Package* 20.5 L 21.7 qt
Engine Oil with Filter 7.1 L 7.5 qt
Fuel Tank 70.0 L 18.5 gal
Wheel Nut Torque 190Y 140 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling
*Engine cooling system capacity values are based on the entire cooling system and its components.
Capacities and Specifications
The following approximate capacities are given in metric and English conversions.
See Recommended Fluids and Lubricants 0 296.
Application
Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant charge
type and amount, see the refrigerant label under
the hood. See your dealer for more information.
Engine Cooling System with Performance Package* 21.5 L 22.7 qt
Engine Cooling System without Performance Package* 20.5 L 21.7 qt
Engine Oil with Filter 7.1 L 7.5 qt
Fuel Tank 70.0 L 18.5 gal
Wheel Nut Torque 190Y 140 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling
*Engine cooling system capacity values are based on the entire cooling system and its components.
And yet, when I did my own first oil change with filter, it took 8 full quarts to be full when fully warmed up and idling on level ground.
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Race Director
Joined: Feb 2011
Posts: 14,742
Likes: 5,605
From: AZ
^^^ That's the best way, do the change, put in about a quart less, run it 'til it gets up to proper oil temperature and then check level per proper procedure and top off as needed. I wouldn't just pour 10.5 quarts into my LS7 without checking.