Kirkland Signature 0W-20 Full Synthetic Motor Oil

[redwngr]

8 hours ago, Grumpy Bear said:

 

So, GM is fully in the oil business now. 

It might be more than just oil that they have specs for, but don't actually produce in their own plants....

 

 

[Grumpy Bear]

10 minutes ago, redwngr said:

It might be more than just oil that they have specs for, but don't actually produce in their own plants....

 

 

 

Aware. XOM is their supplier. At least at present. 

[repairman54]

On 4/19/2023 at 9:36 AM, Grumpy Bear said:

@repairman54 how often do you change oil? Just curious. You have a good track record. 

Since its a full synthetic oil I go by the OLM which is usually 7k miles in summer and 6k in winter. 

I only use the AC UPF filters also.