How do you feel about Havoline?

[GMorg]

Since the discussion was about 5W30 vs. 10W30 and I have used many of each (and currently using a 0W30), including those that were/are leading edge, I do have some points of reference.

As for Toyota and Mazda 0W20, you seem to be correct. Without any input on measurable economic benefits for an average daily driver from those that have tried the oils, I may have to use the oils myself. I had hoped that BITOG readers that were convinced of the value of these oils or 5W over 10W, readers that communicate with authority and confidence in their positions, could share some actual measurements related to costs and efficiencies. Those readers that KNOW that 10W30 should never be used in the south, should be able to share the information on which those conclusions were reached.

My position was that 10W30 would do no harm in Alabama and that the economic benefits of 5W30 in Alabama is likely very small. I also think that fear of 5W30 is irrational for most of today's oils. I also think that 5W30 is a better choice than 10W30 if the oils are equally priced.

 

[Garak]

Originally Posted By: GMorg
My position was that 10W30 would do no harm in Alabama and that the economic benefits of 5W30 in Alabama is likely very small. I also think that fear of 5W30 is irrational for most of today's oils. I also think that 5W30 is a better choice than 10W30 if the oils are equally priced.


Of course, in Alabama, it's not a huge difference. Obviously, a 0w-20 synthetic will cost more than a 5w30 or 10w30 conventional. However, it's fairly uncommon today to find a 10w30 that's cheaper than the 5w30 in the same brand.

 

[Maxima97]

If you vehicle manual says 10W30, it is Ok to use both 0,5,or 10W30. Havoline and Chevron are from same company. I am sure their oil are as good as Mobil and Shell for daily usage. They licneced their patent to other company for refine Group II+ conventional oil. I would guess they also sell their base oil to other for blend. Depend you vehicle and driving condition. I would safely use 10W30 in summer and 5W30 in winter.