Hello anyone and everyone! Thanks in advance for any responses.
To the matter at hand....
The vehicle is a chevy colorado with the I5 motor. I obtained this truck with roughly 135k miles on it and have been using it to deliver pizzas. That typically consists of 80-120 miles of city, stop-and-go driving five or six days per week. Along with that, I drive another probably 50 miles around town, and probably a solid 200 miles on the highway every week. All this delivering and a good portion of the city driving are along the beach, where the salt air is a-plenty. I'm about to cross the 150k mark.
I change the oil every 2500-3000 miles with Castrol GTX conventional. It always smells like fuel, but it's not enough to separate when I leave the old oil sit. The choice of filter varies. Per oil change it normally wouldn't lose more than a quart, if that. It takes 6 quarts. So, normally I'd get 5.5 or 6 quarts out. Enough for me to say 'it's not using any oil.' However, a few OCIs ago, the manifold cat broke open, so the exhaust is wide open right where the exhaust runners actually collect. After this, I started getting only about 4 quarts when I changed the oil.
I'm thinking of switching to some sort of high mileage oil since it has started this because I might extend the OCI. I won't be delivering pizzas much longer. My issue is that I haven't seen a high mileage oil with the gm6094m, but being that it's a cold-flow standard, I'm not too concerned. Very nice, warm weather. What might be your plan of action? Keepin' up what I'm doing? Or going to high mileage oil? Or have I just not been reading the oil bottles closely enough? Advice rocks haha. Again, thank you.
To the matter at hand....
The vehicle is a chevy colorado with the I5 motor. I obtained this truck with roughly 135k miles on it and have been using it to deliver pizzas. That typically consists of 80-120 miles of city, stop-and-go driving five or six days per week. Along with that, I drive another probably 50 miles around town, and probably a solid 200 miles on the highway every week. All this delivering and a good portion of the city driving are along the beach, where the salt air is a-plenty. I'm about to cross the 150k mark.
I change the oil every 2500-3000 miles with Castrol GTX conventional. It always smells like fuel, but it's not enough to separate when I leave the old oil sit. The choice of filter varies. Per oil change it normally wouldn't lose more than a quart, if that. It takes 6 quarts. So, normally I'd get 5.5 or 6 quarts out. Enough for me to say 'it's not using any oil.' However, a few OCIs ago, the manifold cat broke open, so the exhaust is wide open right where the exhaust runners actually collect. After this, I started getting only about 4 quarts when I changed the oil.
I'm thinking of switching to some sort of high mileage oil since it has started this because I might extend the OCI. I won't be delivering pizzas much longer. My issue is that I haven't seen a high mileage oil with the gm6094m, but being that it's a cold-flow standard, I'm not too concerned. Very nice, warm weather. What might be your plan of action? Keepin' up what I'm doing? Or going to high mileage oil? Or have I just not been reading the oil bottles closely enough? Advice rocks haha. Again, thank you.
