I did the same, except with Mobil 1 Synthetic same intervals.

 

why is everyone getting an oil change at 1000 miles?

 

In my case, call me old fashioned..But the first 1000 miles is when the most at one time engine wear occurs..So by 1000 miles the oil is full of microscopic metal particals from break in...So leaving this contaminated oil in too long will add to more wear unnecessarily and maybe earlier engine problems.

 

The filters take anything bigger then about 10 microns out of the oil, so any metal pieces that are smaller then that would still be floating around in it, along with all of the other crap that normally accumulates in the oil. Even after the first change, these metal pieces and chunks of gunk are still there, so you really don't have to change any earlier then what it says in the owners manual. Back in Dennis' younger days, I'm sure the filters weren't so fine and that was a concern, but then horses didn't use filters, they were just pickey about what they ate.

 

1000 to 3000 miles for the first change is the generally accepted current practice (could be a myth at this point in technology but I don't know). One thing I do know from experts however, is that Mobile One is good stuff!

 

Linus,

No matter how well the filter filters..the dessolved acids and stuff that are in oil solution and can not be filtered (they're liquid)...I'm only saying the greatest amount of these contaminates are going to be in the FIRST batch of oil, put into the engine at the factory..These contaminates also include break-in compounds and assembly lubricants that the engine was assembled with (thick STP like slime) The other metals that naturally deposited from break-in are too heavy to circulate and settle to the bottom of the sump..So sure, they really won't get filtered out...Sooner you get all these things out, the better...

Now, if you'll excuse me sonny, I have to water my horses and put some bear grease on my chariot axels.[sm=rolleyes.gif]


NJ..Mobile 1 is Ok if you've had good luck..I know too many people who've used Mobile 1 with less than favorable results. i.e., Engine main crank seal leakages more than normal oil consumption, lifter noise, main bearing knock..Myself included on One car that I had, a Toyota Supra..When I stopped using Mobile 1, my oil burning off ended...I have use religiously for 30 years Castrol, and now the Syntec with absolutely not one single engine problem in any of my cars...Remember, A good sales ad doesn't necessarily mean a good product.

 

Geez Dennis... You must be as old as I am...I always think back to the day when cars and truck sold had "break-in" oil in them. The dealer would tell you to bring it back at 1000 miles so they could change it out. Todays modern oils and the factory's machining techniques have improved greatly over the past few decades... So this is really no longer necessary. But you do bring up an excellent point... All the assembly goop in the engine. I never really thought of that. I just like to get mine switched over to Mobil 1 at 2000 miles. (I just did my first oil change yesterday!)

I'm not sure how many of you change your own oil... But it is very easy with the H3. You need to remove the front skid plate and then the one just below the oil pan. I can't describe it exactly but Hummer made it so that you can leave some of the bolts in to support the plates until you are ready to remove them. This is the first vehicle that I have owned where I could crawl all the way under it without it being on a lift or jackstands! I love it. The oil filter is on the side of the engine... sort of... The neat thing is that it has a plastic drip resevoir that has a little spout on it. As the oil drips from the filter when removing... It diverts the oil over the side. (Well... most of it anyway.)

The front skid plate looks to be aluminum... Hmmm.. I wonder what it would look like all buffed out?...

 

Hey old timer

If you ever look into it and find out how much it would cost to polish that skid plate, lemme know...I think it would look slicker than snail snot.[8D]

 

Swing by your local big name truck stop, like TA or Petro or Flying J, and wander around the isles. You will find typically find some polish. If you get the sticks, buy the green one and the white one. The red might be usefull too, but I think it might be to coarse. Right next to the buffing compound there should be a buffing wheel to fit your drill, or get a buffing wheel for your dremel tool, then just buff away! When you are done, you should be able to shave in the reflection. This is what truckers do to thier fuel tanks, if they have the time.