I just changed my front gear oil in my 254k mile 2005 Silverado last night. The diff is quiet and fluid stays clean looking (I think the last couple changes went 30-50k miles) but it has had leaking axle seals since like 140k miles and there is a significant amount of metal shavings stuck to the drain plug, the last 2 changes. Less on the last one, but I think I went a short OCI.
Sorry I don't have an actual uoa, it was just a visual inspection and I thought to ask for opinions after doing it.
It has always run 80w90 conventional hyoid previously as that's what it calls for. This time I bought one bottle of clearance 85w140 Redline synthetic hyoid (last bottle they had) and 1 bottle of 75w90 of the same stuff. I can't imagine that with the wear this thing probably has by now that the mix of these 2 viscosities would be a problem for it, especially going from conventional to synthetic.
What do you guys think?
Next time I am ordering from amsoil because I want to use the little baggies that I can squeeze in.
Thanks.
Sorry I don't have an actual uoa, it was just a visual inspection and I thought to ask for opinions after doing it.
It has always run 80w90 conventional hyoid previously as that's what it calls for. This time I bought one bottle of clearance 85w140 Redline synthetic hyoid (last bottle they had) and 1 bottle of 75w90 of the same stuff. I can't imagine that with the wear this thing probably has by now that the mix of these 2 viscosities would be a problem for it, especially going from conventional to synthetic.
What do you guys think?
Next time I am ordering from amsoil because I want to use the little baggies that I can squeeze in.
Thanks.