10w30 vs 5w30 oil in the summer

[18 inch Crappie]

My truck uses 5w30 but I have a box of 10w30 from my last truck. Can I use it this summer to get rid of it because the 30 weight is still the same?

[Jeremy airjer W]

Thats perfectly fine.

[ec30_06]

Should be no problems at all. Your owners manual will tell you what weights of oil they recommend at different temps

[BpAki987]

i always use 5w-30 in the winter and 10w-30 in the summer in my vehicles

[theoilman]

Absolutely! Almost all owners manuals in vehicles that are underhood stickered 5W-30 list 10W-30 as acceptable (all GMs and more). Summertime there is no performance difference between 5W-30 and 10W-30. Wintertime the lower cranking performance of the 5W-30 will make a difference.

[Shack]

Should be fine!

What year, make and model is the truck?

[18 inch Crappie]

2000 chev 5.3L

[michaelpettersen82]

I have a 2001 Silverado with a 5.3L and I use amsoil 10w30 year round and since the truck was new. I have 119k on it now and runs like it was new. now if we're talking about conventional motor oil I would not use 10w30 in the winter, but perfectly OK in the summer.

[Whoaru99]

I'd go with what ever the Owner's Manual says is OK.

I know mine (for an older truck with the 5.7L) says 10-30 is OK in the summer, but 5-30 is the preferred viscosity year-round.