Since 99% of what I know about oil I learned here I just wanted to make sure I understand a couple things.
First, they still make oil rated SH SJ, for instance Kohler 10w30 which also carries the C rating for HD oil. Fairly certain on this one but just making sure.
Second and this has to do with VR1 street 10w30. Would it be safe to say this oil is similar to a SG SH and maybe older because of the ZDDP levels it has. Also i believe I read here or maybe the Valvoline site that VR1 would meet SN if it were not for the ZDDP levels so in other words they use a SN oil and just add more ZDDP to come up with VR1. The later being the reason it does not carry the API starburst thingy.
Last and I know this is heavily opinionated which I'm not looking for this to turn into but more of a ok or safe to say. HD oils were designed to be used in a engine that works in sever duty like very hot and dusty conditions and semi synthetic/synthetic would be a good choice for a snowblower because of the colder conditions you have to start them in. Again just looking to see if this thinking from what I've read her is correct.
First, they still make oil rated SH SJ, for instance Kohler 10w30 which also carries the C rating for HD oil. Fairly certain on this one but just making sure.
Second and this has to do with VR1 street 10w30. Would it be safe to say this oil is similar to a SG SH and maybe older because of the ZDDP levels it has. Also i believe I read here or maybe the Valvoline site that VR1 would meet SN if it were not for the ZDDP levels so in other words they use a SN oil and just add more ZDDP to come up with VR1. The later being the reason it does not carry the API starburst thingy.
Last and I know this is heavily opinionated which I'm not looking for this to turn into but more of a ok or safe to say. HD oils were designed to be used in a engine that works in sever duty like very hot and dusty conditions and semi synthetic/synthetic would be a good choice for a snowblower because of the colder conditions you have to start them in. Again just looking to see if this thinking from what I've read her is correct.