I try to do OCI’s around 5-7.5k and there always seems to be excessive crud on the dipstick. This is the only engine I service that does this. Rather than doing a UOA, I thought about giving 0w40 a try and seeing what happens. My goal is better cleaning with the crud in the filter.
The truck has 75k on it. Sees a good mixture of city and highway miles. I’ve been using Magnatec D1G2.
So I can please the fact checkers, the manual calls for 0w20. 5w20 can be used if 0w20 isn’t available, BUT 0w20 MUST be used at the next oil change. You can go up a weight if the vehicle is used for towing, which it is. I take this to mean 5w30 so that’s what it’s been getting. Factory OCI is 10k. It’s my understanding that there’s been little to no change in the engine when it actually did specify 5w30 as well.
The truck has 75k on it. Sees a good mixture of city and highway miles. I’ve been using Magnatec D1G2.
So I can please the fact checkers, the manual calls for 0w20. 5w20 can be used if 0w20 isn’t available, BUT 0w20 MUST be used at the next oil change. You can go up a weight if the vehicle is used for towing, which it is. I take this to mean 5w30 so that’s what it’s been getting. Factory OCI is 10k. It’s my understanding that there’s been little to no change in the engine when it actually did specify 5w30 as well.