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That's the problem, no long term testing on catch cans! However, there are millions and millions of direct injection forced induction vehicles that have run millions of miles with no problem! Water vapor which is the main combustion by-product actually has a cleansing effect on intake valves, and combustion chambers.
of the handful of engines I have rebuilt - some have had catch cans on them early on. LIke my 09 G8.
and my valves were clean as a whistle at 148K miles of mostly City driving. I have pictures somewhere if I can find them again.
not millions of data points mind you. More importantly - no gel in my intake manifold - no gel in my head runners - minimal coke on the piston and none on the bores. clean rings. Mind you I am also one of those morons that puts a can of seafoam in the gas tank nearly every other oil change (10K plus miles) also and changed my plugs religiously at 100K miles.
of the handful of engines I have rebuilt - some have had catch cans on them early on. LIke my 09 G8.
and my valves were clean as a whistle at 148K miles of mostly City driving. I have pictures somewhere if I can find them again.
not millions of data points mind you. More importantly - no gel in my intake manifold - no gel in my head runners - minimal coke on the piston and none on the bores. clean rings. Mind you I am also one of those morons that puts a can of seafoam in the gas tank nearly every other oil change (10K plus miles) also and changed my plugs religiously at 100K miles.
A couple of problems, I don't think the 09 G8 had DI, and why did it need to be torn down at 148K miles?
A couple of problems, I don't think the 09 G8 had DI, and why did it need to be torn down at 148K miles?
it does not true - but catch cans still help there too. Port fuel injection engines still developed valve deposits from PCV - it's just easier to clean.
I eventually had a faulty lifter - which is a common issue on GM 6.0 L V8 and some LS3's and 7's. Most have issues early in life - some limp along with lifter noise for a long time (mine) and some never fail completely.
I'm just going to say this..... there's absolutely no way the stock tires are fine at 100k miles. Or any tire for that matter. Which makes me question the whole thing.
I put 85k on a set of Michelin LTX's on my old truck. They still had 5/32nd's on them.
I've been in automotive for close to 25 years. Worked in the tire business early in my career. Even in the early 90's, we saw plenty of cars with over a 100k on a set of tires. Someone who does almost exclusively straight highway miles, and stays on top of air pressures and rotations can get it easily today.
I just had my every 5,000 mile rotate and balance last week. 8/32 of tread left on my OEM Michelins with 34,000 miles. I'll get 60-70k with no problem.
of the handful of engines I have rebuilt - some have had catch cans on them early on. LIke my 09 G8.
and my valves were clean as a whistle at 148K miles of mostly City driving. I have pictures somewhere if I can find them again.
not millions of data points mind you. More importantly - no gel in my intake manifold - no gel in my head runners - minimal coke on the piston and none on the bores. clean rings. Mind you I am also one of those morons that puts a can of seafoam in the gas tank nearly every other oil change (10K plus miles) also and changed my plugs religiously at 100K miles.
Straight highway that's very possible. My Michelin's lasted 14,000 Miles. I drove a Dodge D50 truck for work once that had 95,000 mostly highway, on the original Yokohama's. Only reason we replaced them was I got a chunk of metal in one.
My buddy has a '12' SC XLT. It came with the Michelins. He has 88,000 miles on them, claims to have rotated three times. There is still a ways to go to the wear bars, and they are worn as perfectly as you could hope for.
He drives very conservatively and takes good care of his stuff. I've known him/truck since new and it's no lie. I am impressed. It's a 5.0, however, so not as good as a 2.7, ha ha. (Putting my flame resistant suit on.)
A couple of shots of Pat's truck, taken Sunday. 106,000 miles. I asked how often he had his oil changed and he smiled and said "about once a month". He goes strictly by the system, which magically says it needs changing at 10,000 miles. Motorcraft semi syn.
