I likely wouldn't try a 5w-40 non-synthetic, since it might be way too loaded with VIIs, if it existed in the first place. I wouldn't be hunting for a conventional 0w-20 or 0w-30 either for similar reasons, assuming they existed, either. The 5w-40 I use is, of course, synthetic, but I've also used 5w-30 conventional in the G37, PYB, as a matter of fact.
Now, do I believe what I wrote? Of course I do. A 5w-XX does work fine in most terrible conditions I come across here. There probably are some days where a 0w-XX would be preferable. But, a 5w-XX does fit most cold days here just fine. The odds of my G37 being outside, shut off, for twenty-four hours straight in -40 and me needing to jump in and start it unaided are slim to none. But, I'm certainly not going to run an SAE 30 for a third of the year and then switch to a 0w-30 for the other two thirds. I prefer to avoid seasonal oil changes and stick with something I can expect to do the job year round.
As for the F-150, the 10w-30 is a legacy of the rebuild; I had gotten some 10w-30 cheap for a couple shorter OCIs. I've hardly turned a wheel on the vehicle in the past many, many, many months, and it faced no winter duty, so the fill right now isn't an issue. I do have an oil pan heater for it if I were to be absolutely needing it on a day when 10w-30 was silly. I do have a stash of 5w-30 Defy waiting for its next two or three OCIs, along with a 5w-30 QSGB straggler.
In my little essay there, I wasn't saying much about conventional versus synthetic. I just prefer to be running an oil that I can use all year. And yes, for my applications, 0w-30, 5w-30, 0w-40, and 5w-40 would fit, and would be my preferred grades.
I would not want to compromise the 0w-XX or 5w-XX of whatever grade I was using, whatever that might be, by mixing, that's all. And, where I mentioned synthetic and Canadian Tire, I was merely pointing out Canadian Tire's marketing rhetoric, not arguing conventional over synthetic or vice versa. Canadian Tire conveniently ignores the fact that a 5w-30 conventional can be equally capable in the cold as a 5w-30 synthetic. Of course, a 0w-30 synthetic is going to have better MRV and CCS values than any 5w-30 conventional or synthetic. But, that's not what Canadian Tire is trying to say. They want you to buy the oil with the highest price tags.
I have used a lot of conventional over the years, and certainly will continue to do so. However, none of my point was really advocating one over the other.
Now, do I believe what I wrote? Of course I do. A 5w-XX does work fine in most terrible conditions I come across here. There probably are some days where a 0w-XX would be preferable. But, a 5w-XX does fit most cold days here just fine. The odds of my G37 being outside, shut off, for twenty-four hours straight in -40 and me needing to jump in and start it unaided are slim to none. But, I'm certainly not going to run an SAE 30 for a third of the year and then switch to a 0w-30 for the other two thirds. I prefer to avoid seasonal oil changes and stick with something I can expect to do the job year round.
As for the F-150, the 10w-30 is a legacy of the rebuild; I had gotten some 10w-30 cheap for a couple shorter OCIs. I've hardly turned a wheel on the vehicle in the past many, many, many months, and it faced no winter duty, so the fill right now isn't an issue. I do have an oil pan heater for it if I were to be absolutely needing it on a day when 10w-30 was silly. I do have a stash of 5w-30 Defy waiting for its next two or three OCIs, along with a 5w-30 QSGB straggler.
In my little essay there, I wasn't saying much about conventional versus synthetic. I just prefer to be running an oil that I can use all year. And yes, for my applications, 0w-30, 5w-30, 0w-40, and 5w-40 would fit, and would be my preferred grades.
I would not want to compromise the 0w-XX or 5w-XX of whatever grade I was using, whatever that might be, by mixing, that's all. And, where I mentioned synthetic and Canadian Tire, I was merely pointing out Canadian Tire's marketing rhetoric, not arguing conventional over synthetic or vice versa. Canadian Tire conveniently ignores the fact that a 5w-30 conventional can be equally capable in the cold as a 5w-30 synthetic. Of course, a 0w-30 synthetic is going to have better MRV and CCS values than any 5w-30 conventional or synthetic. But, that's not what Canadian Tire is trying to say. They want you to buy the oil with the highest price tags.
I have used a lot of conventional over the years, and certainly will continue to do so. However, none of my point was really advocating one over the other.
