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**Palf70Step** · 07-22-2020, 02:19 PM

Dexos is just their synthetic blend. As long as you are using a compatible full synthetic you should not have any issues. As far as 5W-30W vs 10W-30W, the 5w is better for first start/cold starts. The weight isn't always about thickness (heavy) of the oil, but its flow characteristics. I try to run 5w-30 on my DD, but being I am living on the surface of the sun in southern mississippi, I don't see, nor have seen issues with the weight difference. I do try and keep the 5w in it during the cooler (relative) winter months.

07-22-2020, 02:19 PM	#2
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 46,640	Re: New LS owner...oil questions..Dexos 1... Dexos is just their synthetic blend. As long as you are using a compatible full synthetic you should not have any issues. As far as 5W-30W vs 10W-30W, the 5w is better for first start/cold starts. The weight isn't always about thickness (heavy) of the oil, but its flow characteristics. I try to run 5w-30 on my DD, but being I am living on the surface of the sun in southern mississippi, I don't see, nor have seen issues with the weight difference. I do try and keep the 5w in it during the cooler (relative) winter months. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!