0W40? - ZR-1 Net Registry Forums

Hib Halverson · 09-07-2022

Starting in 2019, GM changed to a 0W40 engine oil for all Corvette engines except the LT6 which uses a 5W50.

Has anyone tried a 0W40 in the first generation LT5?

I would think that the same two major advantages?1) oil gets to bearings more quickly on cold starts and 2) better thermal stability during aggressive engine operation?that GM gained with using a 0W40 in the 2G LT5 and the LT2 woulid be useful in the original LT5.

09-07-2022	#1
Hib Halverson Join Date: Jun 2005 Location: CenCoast California Posts: 898	0W40? Starting in 2019, GM changed to a 0W40 engine oil for all Corvette engines except the LT6 which uses a 5W50. Has anyone tried a 0W40 in the first generation LT5? I would think that the same two major advantages?1) oil gets to bearings more quickly on cold starts and 2) better thermal stability during aggressive engine operation?that GM gained with using a 0W40 in the 2G LT5 and the LT2 woulid be useful in the original LT5. __________________ Hib Halverson Technical Writer former owner 95 VIN 0140 current owner 19 VIN 1878

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode