1997 5.9 gas
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Veteran
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1997 5.9 gas
Original owner here of my truck, Truck has had regular oil changes it’s entire life, and even right now with 2000 km on the current oil, it’s a nice light gold color on the dipstick. So I’m confident the engine is clean inside, but I’ve never been big on fuel additives. Engine has 425,000km and has never been open. Original plenum gasket, original tranny (fluid changed every 80,000km), original front and rear end, transfer case, etc. But I am getting concerned that my intake valves could be getting carboned up. Thinking of adding a 3 or 4 bottles of Seafoam to 2 or 3 consecutive tanks of gas to clean things up. Do you guys think adding directly into a vacuum line is necessary, or just adding to the fuel tank will be sufficient?
Grand Champion
Joined: May 2019
Posts: 5,146
Likes: 721
From: S.W. Indiana
Original owner here of my truck, Truck has had regular oil changes it’s entire life, and even right now with 2000 km on the current oil, it’s a nice light gold color on the dipstick. So I’m confident the engine is clean inside, but I’ve never been big on fuel additives. Engine has 425,000km and has never been open. Original plenum gasket, original tranny (fluid changed every 80,000km), original front and rear end, transfer case, etc. But I am getting concerned that my intake valves could be getting carboned up. Thinking of adding a 3 or 4 bottles of Seafoam to 2 or 3 consecutive tanks of gas to clean things up. Do you guys think adding directly into a vacuum line is necessary, or just adding to the fuel tank will be sufficient?
If it's not broke, why fix it? You can pour it in the tank if you want. Your mileage converts to 265,000 miles or so. (I'm not metric). You've done excellence maintenance and are getting your money;'s worth out of the truck. I'm surprised the timing chain hasn't needed attention. If you're getting the rocks in a can rattle, the timing might be off from a worn timing chain.
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If it's not broke, why fix it? You can pour it in the tank if you want. Your mileage converts to 265,000 miles or so. (I'm not metric). You've done excellence maintenance and are getting your money;'s worth out of the truck. I'm surprised the timing chain hasn't needed attention. If you're getting the rocks in a can rattle, the timing might be off from a worn timing chain.
I guess I should say the front of the engine has been touched- I’ve replaced the timing chain & gears (twice). The first time I replaced them because the timing cover gasket was leaking coolant outside. The 2nd time I did them because I was replacing a leaky water pump.
Grand Champion
Joined: May 2019
Posts: 5,146
Likes: 721
From: S.W. Indiana
Good advice. I will just add to the tank.
I guess I should say the front of the engine has been touched- I’ve replaced the timing chain & gears (twice). The first time I replaced them because the timing cover gasket was leaking coolant outside. The 2nd time I did them because I was replacing a leaky water pump.
I guess I should say the front of the engine has been touched- I’ve replaced the timing chain & gears (twice). The first time I replaced them because the timing cover gasket was leaking coolant outside. The 2nd time I did them because I was replacing a leaky water pump.
That makes more sense. These are good trucks. The first generation of Magnum engines trace their roots back to the 1953 241 Red Ram Hemi. That became the poly head, then the A, then the LA then the F.I. LA then the Magnums. I've got a '96 version of your truck and despite previous owners not being the most talented mechanics. (I found a flattened beer can under my intake) it's a good reliable truck. (I found oil soaked cigarette butts in there too.)
I'm curious to see what a 26 year old truck that has been taken care of properly looks like. Why not post a picture of your truck?
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Veteran
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That makes more sense. These are good trucks. The first generation of Magnum engines trace their roots back to the 1953 241 Red Ram Hemi. That became the poly head, then the A, then the LA then the F.I. LA then the Magnums. I've got a '96 version of your truck and despite previous owners not being the most talented mechanics. (I found a flattened beer can under my intake) it's a good reliable truck. (I found oil soaked cigarette butts in there too.)
I'm curious to see what a 26 year old truck that has been taken care of properly looks like. Why not post a picture of your truck?
I'm curious to see what a 26 year old truck that has been taken care of properly looks like. Why not post a picture of your truck?
