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    IF YOU LOVE YOUR TRUCK... OIL COOLER 911

    First, Riotwarrior, good on you for offering that cooler bundle! Good man! SyicoIDI:That was nasty! I got the heebee-jeebies looking at mine right after I tore my engine apart (see pic below) with just a couple of chunks of silicon blocking two tubes (which can be traced to yours truly...
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    Anyone run synthetic or 10w30 in the winter?

    What a ridiculous comment. Try adding something useful to the discussion next time... even if it's "copy and paste." Something other than a trollish comment.
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    dynomax exhaust report

    Huh? Can't hear you.. my ears are ringing from that straight pipe. ( : < ) A straight 4-inch pipe would REALLY be loud. Might get away with it on a turbo truck. NA.. I shudder. There would be no power benefit of a 3-inch mufflered system or even a good 2.5 inch with mandril bends and a better...
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    ZDDP oil additive, with regards to the 7.3 IDI

    That's right. All the diesel rated oils have more than enough ZDDP for our engines, though it has been reduced a little. Lack of ZDDP is really only an issue for flat tappet engines, especially those that have heavy valve springs and high lift. Especially on break-in of a new cam. There are...
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    dynomax exhaust report

    I have the same thing adapted onto my Bank turbo'ed 6.9. The turbo quiets things a lot but even so, I think it's too noisy. It had a nasty drone and about 35 mph for me. Oddly, that drone almost went away after Mel timed the truck at 9.5 vs the 7.5 is was before. Anyway, try a different...
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    Anyone run synthetic or 10w30 in the winter?

    I've been running 10W30 HDEO for many years... year around. I'm talking on and off since 1987 (there were times in the early '90s when Rotella 10W30 was hard to find). With a truck that's been turbocharged since 1987. I've had great oil analysis with it and when I had the engine apart with the...
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    Does My IDI have enough POWER??

    Like the rest of these guys, I doubt it. It's been so long since I drove my NA that I honestly can't remember what it was like. With a turbo, it would... I can say that for sure. It's more likely if the truck has 4.10 gears but lots less likely if it has 3.54.
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    My MPG test/s

    Riot, sounds like you worked hard for accurate methodology.... but what about odometer accuracy? In general, our trucks tend to read about 10 percent more miles that actually driven with the stock tire size. That makes calculated mpg read about 10% higher (or thereabouts). Your tires are about...
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    Inquiry about fuel additives

    And how many do you see a year, Kevin? Two? Four? 20? A hundred? Unless you've personally done thousands and know absolutely the failures are from from ULSD...... I'm not calling you out here, OK, just making a point. ( : < ) Anything one person sees is just a drop in the bucket. This...
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    Inquiry about fuel additives

    This is all good information but I am not convinced there is much of a problem with ULSD. If you go into research mode, most of the sources for the dire predictions also happen to be selling some sort of a cure. What I'm looking for is a detailed, independent and scientifically controlled study...
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    PSD exhaust on Bullnose?

    A while back, maybe at the rally, someone told me you can use a PSD tailpipe (the over axle part) on our trucks. If true, can anyone supply details?
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    How often to replace fuel filters?

    Yeah, that the big question after 20+ years... does the system still work? That whole assembly is somewhat notorious for being the cause of fuel and air leaks so who's to say the water sensor is anything special. I don't see anything in my manual how to test the sensor itself.
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    How often to replace fuel filters?

    Yep. I have some vague recollection of putting something in the fuel but can't think of what it might have been. I think this happened in 1994.
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    How often to replace fuel filters?

    Manual says 15K intervals on the secondary fuel filter element (above the VC) and draining the water separator (if you still have one that works properly) every 5K. I've always stretched that filter to 30K without issue... with a mechanical fuel pressure gauge hooked for one interval as...
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    Changed out my glow plugs...

    Probably a co-inki-dinki. The glow plugs would help it start better and run smoother but once the truck was running and the glow plugs have cycled,, they wouldn't add 300 RPM to the high idle. I have some vague memory of something I read years ago about why your glow plug time has changed but...
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    Engine oil bypass centrifuge

    Also Google the Racor ABS system, the smallest size they offer is just perfect. The ABS system gives you the choice of 10, 5 and 3 micron absolute filter elements and these filters will absorb a certain amount of water and oxidation byproducts. I have on on my truck now Look Here...
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    After heads come off, what to use for stuck rings????

    Folks, if you are gonna have the heads off and there's even a hint of a ring problem, it's not too much more effort to drop the pan and install rings. Comet, ARX, Kreen, etc, is not going to put metal back on worn rings or bores. It's a lot of effort and money to pull the heads and work them...
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    bigger tires=better gas mileage?

    As to semi-floats in diesels, or diesel in light duty F250s, I'd need to see a line ticket or a VIN breakdown to believe it. There is too much written evidence to the contrary. What you see 20 and 30 years down the road, with parts so easy to swap around, is not indicative of anything that...
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    bigger tires=better gas mileage?

    Since the Diesel was only offered only in the the F250HD trucks (8600# GVW) that only had full floaters (either a D61 to mid'85 and the Sterling after), the semi-floats offered in the regular F250 (6600# GVW) ('80-'85 it was a D60-3, from mid '85 on it was a semi-float 10.25 Sterling) (6600#...
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    bigger tires=better gas mileage?

    RLDSL is right. Overall a five speed or an overdrive (or a 5-speed AND an overdrive) with 4.10s is the best combo of performance and mileage. If you can afford it.
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    bigger tires=better gas mileage?

    I've fought the "4.10-3000-rpm-at 70mph" blues for 28 years now. 55 mph= 15-16+ mpg. 65 mph= 14-15. 70 mph=13-14. That's pretty much been it for 28 years just like clockwork. Tread pattern makes a HUGE difference, so a highway ribbed tire will do the best and a mudder the worst. The problem...
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    Nature of C6 Transmission Questions

    Cold oil also causes a harsher or delayed shift. ATF is like any other oil, it gets thicker when it's cold. Thick oil creates higher pressures. Higher pressures change the way the trans shifts to a small degree. On the other side of the coin, sometimes a cold trans has more internal leakage...
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    How I Stopped Excessive Oil Use!

    It's my understanding that it's not so much the gasses that cause blown gaskets but too much oil. If your CDR were bad, for example, you would get a LOT of oil vs a working CDR that does a better job of separating the oil and gasses.
  24. P

    MAJOR Oil consumption

    Lack of a good lubricant (or poor maintenance) may be the root cause of wear, which can beget high oil consumption, but once the wear occurs, the lubricant is not the cure. And truth be told, the difference in wear between a good lubricant (like any of the name brand off-the-shelf HDEOs) and...
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    MAJOR Oil consumption

    Seriously, the only time a turbo is an issue due to wear is if it's really, really bad... I mean turbine or compressor vanes touching the housing. The more common issue is if the drain is blocked. For one thing the oil flow thru a turbo pretty fast. Second, there is pressure on on both sides...
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