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I bought this Dakota (1999 Dakota R/T, 5.9L) a little over a year ago. The dealer had performed a fresh oil change on it at the time with 10w30 oil. It had about 129k on it at the time. For the first 6 months I had it, I used it mainly around town - going to Home Depot, hauling the dogs to the vet, etc. From 129k to 133k the truck never used a noticeable amount of oil.
Last December, I had Goodyear rebuild the front end on the truck and since then have been using it as my primary commute vehicle, 35 miles round trip, mostly highway ay 65 mph. Along with the suspension work, Goodyear changed the oil (10w30 again) and also the filters and PCV valve. I've went about 3500 miles since then and have added 2.5 qts of oil.
I want to see if I can address the oil issue. Here are my thoughts:
1) The aftermarket PCV valve Goodyear used might be the issue. I know before they serviced it, there was a Mopar PCV valve in there and it was probably the original. Is an aftermarket PCV valve an issue on the Magnum engines?
2) The dreaded intake plenum issue. I haven't looked down the throttle body yet, but the truck idles smoothly and runs well so if there is an problem here, it can't be a bad leak, I guess.
3) Maybe the change in use is contributing to the oil loss.
Anyone have any thoughts or anythign else I should look at? I don't see any evidence of leaks so it's burning the oil not leaking it.
Last December, I had Goodyear rebuild the front end on the truck and since then have been using it as my primary commute vehicle, 35 miles round trip, mostly highway ay 65 mph. Along with the suspension work, Goodyear changed the oil (10w30 again) and also the filters and PCV valve. I've went about 3500 miles since then and have added 2.5 qts of oil.
I want to see if I can address the oil issue. Here are my thoughts:
1) The aftermarket PCV valve Goodyear used might be the issue. I know before they serviced it, there was a Mopar PCV valve in there and it was probably the original. Is an aftermarket PCV valve an issue on the Magnum engines?
2) The dreaded intake plenum issue. I haven't looked down the throttle body yet, but the truck idles smoothly and runs well so if there is an problem here, it can't be a bad leak, I guess.
3) Maybe the change in use is contributing to the oil loss.
Anyone have any thoughts or anythign else I should look at? I don't see any evidence of leaks so it's burning the oil not leaking it.