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Get yourself a B&M trans pan drain plug kit and never have a mess again.

"Ok, I picked up a 2002 Jeep Grand Cherokee with the Dana 44 rear end and the Dana 30. It has 34k on it, and the original pumpkin juice... Limited slip in the back. Manual says 75/140 front and rear. Going to Oreilly in the morning to get a buncha stuff, oil, diff fluid, etc.. Valvoline...

You should really only run the amount of oil spec'd for the engine. Too high of a oil level will cause the oil to get churned up by the crank and that will cause aeration and foaming-not good for lubricating the engine and if bad enough, it will cause bottom end failure or a spun rod/main...

I wouldn't even drive if everything/everyone was so close to me. I'd get a bike or some rollerblades or something and just "hoof" it where I needed to go. If you must drive, use a synthetic and change it every 3000K miles-your usage is considered servere service.

A 10W30 should work fine for you if your Jeep is just a daily driver/commuter. If it gets really hot&humid in the summer or you "abuse" your Jeep off road during the spring and summer, I'd run a 5/10/15W40 in it. edit-I'd probably run a 5W30 in the winter if your Jeep sits outside (not...

A thicker oil "takes up the space" between the piston skirt and the cylinder wall per se. This is a band aid fix though. The real fix is to replace the pistons and have the bores honed or bored.

Go back to what you were using. Historically, high mileage engines do not like synthetics and thus they end up with leaky gaskets and seals. Engines should be "put on" synthetics when they are still fairly new-like under 20K miles. This ensures the seals and gaskets can "live with" the...

What are you doing to your engines to wear them so quickly? Absolutely nothing. Jeep had a piston slap issue with the 4.0s before they "took care of it" in late 99/early 00. Where do you live (winter / summer temps)? Live in the upper midwest. Temp ranges from -20 to 90+. What grade oil do you...

One of the reasons (and there are a few) DC got rid of the inline 6 was the lack of modularity of it. In English, they couldn't use it and weren't using it in any of their other models...the only platform still using the inline 6 is the TJ Wrangler. That's pretty much the reason why the new and...

The W72 was a 400 Pontiac. With this engine, the scoop would read TA 6.6. If you had the base L78 400 Pontiac or the L80 403 Olds, the scoop would say 6.6 litre. Lots of debate about this over the years, but what I typed is how it really was according to build sheet and option listings obtained...

I read somewhere, it may have even been here, is that Mobil "remarketed/relabeled" Delvac 1 as Truck and SUV for broader market coverage. It makes sense because Delvac 1 is, for sake of argument, a "truck stop only" oil for big rigs. It's working because they sure do sell a lot of Truck and...

Don't run a 30wt in the 2.0. The factory spec is a 5W40-go with that because there are some real good and readily available oils at Walmart. Shell Rotella T syn and Mobil 1 Truck and SUV are two excellent 5W40s. Mobil's Delvac 1 is another choice but some say the Truck and SUV is the same thing...

"For that engine I'd use Mobil 1 T&S 5w40 or Shell Rotella T 5W40 which is what i use in my Jetta 2.0." Same here. I will only use a 5W40 in the VW 2.0 and I personally use M1 5W40. A 5W30 is too thin because these engines use low tension rings. You should only use 5W30 in a "emergency" or to...

Don't use it. If your trans calls for ATF+4, just use ATF+4. Everything your trans needs is already in the factory spec fluid. Adding Lubeguard alters the chemistry of the fluid and that will affect the trans in one way or another. How much is it worth to you to find out what Lubeguard does to...

Go with the M1. The Shell is good too, but the M1 is better.

I've had a high mileage oil, Valvoline Maxlife to be specific, actually cause a front main seal leak. Stopped using it and the leak went away. This was when the Maxlife oils first came out, so they may have changed the formula or something since then. Try it for yourself and form your own...

No decrease in MPG here either. Use the oil, your engine will thank you.

Gary-Jegs has free standard shipping. I've ordered stuff from them for years now and I've never paid any shipping charges. I have paid a reasonable handling charge, which is fair considering someone has to "work" to pick and pack my parts and give them to the UPS guy. Too many people want...

Markc-Note that I said *most*. I have seen higher mileage ones come through. No argument there. Most 4.0 major rebuilds I have done stem from excessive piston clearance and bad rod bearings. Most top end rebuilds are for worn guides, trashed lifters and the occassional worn rocker. Some 97s were...

I find it funny that some think the 4.0's lifespan is diesel-like. Older 4.0s may sound like diesels with the trademark piston slap and lifter rapping, but they won't last nearly as long before it's rebuild time. Most that own early 99s and older can expect some kind of overhaul once they crest...