View Poll Results: How often do you change your oil?
I change the oil every 3,000 miles or eariler. 308 24.33%
I change the oil every 3,000 miles or eariler.
308 24.33%
I change the oil every 5,000 miles, good balance. 685 54.11%
I change the oil every 5,000 miles, good balance.
685 54.11%
I change the oil every 7,500 miles as recommended by the manual. 164 12.95%
I change the oil every 7,500 miles as recommended by the manual.
164 12.95%
I change the oil every 10,000 to 15,000, or when ever. 92 7.27%
I change the oil every 10,000 to 15,000, or when ever.
92 7.27%
I never change the oil, it's just a communist plot. 17 1.34%
I never change the oil, it's just a communist plot.
17 1.34%
Voters: 1266. You may not vote on this poll

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Old 06-30-2004, 04:10 PM #46
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Larry said: "As a final note, this may help with the question of regular gas or not. This truck pulled a 6k load up Moutain Springs Grade in east San Diego County on 100+ days from sea level to almost 4k feet in less than 5 miles. No problems, just foot to the floor all the way to the top, every trip."

Thanks for putting my fears about the 4.7 somewhat to rest. You didn't say in the above quote, what grade of gas was used on those climbs. BTW - you said foot was to the floor, but how fast did it pull then?

Also, was there an add-on tranny cooler?
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Old 06-30-2004, 04:16 PM #47
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Pitbull
UOA, ok I think I knew that but what page does it say in the owners manual about 5k intervals what page, only cause I have this blue book called Passport to Performance, 2003 Scheduled Maintenance and in their it says 5000miles or 7500miles

The girlfriend does not freak out, she makes me do her laundry well at least she cooks but the giant chunks of metal where still pretty big, bigger then I ever want to see but their more like big shavings, still pencil tip size, I know it is not just me cause when I worked in several dealers and did plenty of oil changes on cars you would be amazed at all the metal that was on the bottom of the 5 gallon container.

Maybe Im to extreme, I strain my oil through a t-shirt and use magnets:arrow:

Larry
I am ordering those UOA kits from Blacklab, cause I want to know whats actually going on in the engine and how the oil is breaking down, Im not the only 1 who went with what Toyota said and changed my oil with dino juice every 5k so what about all the other Toyota or Lexus owners that do 5k intervals on dino.

Am I worried not really cause I've seen GM trucks after the 1st oil change that have magnet tip drain plugs and those things have a half inch of metal particles stuck to the edge, and the 1st 3 changes nothin really came out, maybe my problem is I look to close or I should stop playing in the used oil.

Now I have no problems with the 4.7, I was just trying to figure out where these particles where coming from, and I think kaneman posted something about metal particles after an oil change.

I read your whole post about the Tundra and very good but he used synthetic, what about owners who do the same with non synthetic with 5k intervals their is no way they are getting the same protection from their dino oil.

The truck has M1 in it now with a Toy filter, I changed out the Mobil Drive Clean after only 1000 miles and I will do a UOA on the next change
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Old 06-30-2004, 05:01 PM #48
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Edge, my 2004 manual only shows 5K mile service intervals. I'll look again but I was looking for the longer interval like I had on my Landcruiser but could not find it. The reason is if I can have a 7500 mile interval (with full warranty coverage) it makes Mobil 1 5w30 synthetic the choice I would make. Do you have a Toyota site that states 7500 mile service interval is ok for the 4th generation 4runner? Thanks, I think I'm just getting old and have to read everything 10 times.
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Old 07-01-2004, 12:58 AM #49
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The only gas used was 87 octane regular. Chevron Pro Guard was added every oil change to keep the fuel system clean.

Speed up that hill loaded, foot to the floor was 50 mph for about 5 miles, at the top and bottom on flat land the truck runs anywhere between 65 and 80 mph.

Oh, and no trans cooler added but the truck did use a good systhetic tranny oil, again Red Line, but Mobil and others are good, too. Also used Red Line in the dif. And one last thing, always used WaterWetter by Red Line in the Radiator. You can check it out at http://www.redlineoil.com/products_coolant.asp
In our test we got a 20 degree F reduction in coolant temp in back to back test.

I'm glad the engine looked so good because I have a 4Runner with the same engine.

Can't answer about dyno oil, we don't use it.
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Old 07-01-2004, 01:07 AM #50
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Thanks for the info, Larry!

On the "Waterwetter" product, did you use it with antifreeze or just water? Also, you said you did a test with it - how was that set up?
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Old 07-01-2004, 11:49 AM #51
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In racing engines it's dist h2o and WW. In street engines its 1/3 a/f 2/3 dist h2o and WW.

Here is the unscientific test.

Trip to Houston and back, up the hill, 111 debrees ambient, up the hill, take coolant temp with i/f gun, for base line with 50/50, a/f and dist h2o. Temp 240 deg F.

Next trip to Houston and back, same hill temp 109, coolant temp 218 deg F, with 1/3 a/f, 2/3 dist h2o and WW (one full bottle).

I know it's not science but we think it's good enough for us.

We never tested syn oil vs dyno on a trip like this because we just assumed the results would be something like we expected.

Lowering the concentration of a/f will always help lower the max temp because water cools better. So if you are traveling and have a marginal condition, dump the a/f and go to the grecery store for dist h2o. Other than than that, WW is a good product, does not promice to improve your life or make you rich, just helps out a bit.
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Old 07-01-2004, 12:02 PM #52
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Edge, I double checked my service manual for my 2004 V8 and it states nothing but 5K mile service? Did they change it from 2003 to 2004?
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Old 07-01-2004, 12:14 PM #53
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Larry, and TeryT. I've owned Dodge Cummins Turbo diesel trucks. Was a member of the TDR on the web and got their quarterly mag. Several members had trucks with over 1,000,000 miles, that's right I said one million miles. They used Rotella T 15w40 dino oil and changed oil and filter per the manufactures recommendation. None of these engines ever needed internal work. Quality dino oil is just as good as synthetic if you follow the manufactures instructions on maintaining your vehicle. The only time I think synthetic helps is for cold starts -20 degrees, or maybe if you are towing at the limit and in very hot climate +100 degrees, it will also let you extend your OCI 50% beyond what the manufacture recommends. Now if any of those fit your needs then use synthetic. Other wise use a quality dino oil and follow the manufactures recommendations and you will get tired of owning the vehicle before you will have oil related problems. That is if you own a Toyota 4runner Im sure there are some brands that it does not matter what oil you run you still will have problems.

Now personally I will alway use shorter OCI and better oils than the manufacture recommends including synthetics at 5K-7.5K OCI's but that is only because I am a car nut like you two guys
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Last edited by Kanab; 07-01-2004 at 12:17 PM.
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Old 07-01-2004, 02:40 PM #54
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Pitbull, the Cummins engine in a Dodge pickup has nothing to do. It's a great engine and is not stressed doing pickup duty. It's not as if it was a PowerStroke. Dodge should have a program to move your current Cummins to a new chassis.
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Old 07-01-2004, 05:59 PM #55
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Quote:
Originally posted by Larry
Pitbull, the Cummins engine in a Dodge pickup has nothing to do. It's a great engine and is not stressed doing pickup duty. It's not as if it was a PowerStroke. Dodge should have a program to move your current Cummins to a new chassis.
Larry, lets not get into 3/4-1 ton diesel truck discussion It would just get real ugly, real quick.
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Old 07-02-2004, 01:31 AM #56
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Pitbull - Yeah, several of those factors will relate to me: I live in Arizona, with common summer temps above 100; I will be towing at about 17-13% under GCWR with the 4R; and will have a lot of hills and mountains to climb.

I will be doing everything I can to keep the vehicle cool & well lubricated; extra tranny cooler & tranny temp gauge; synthetics in anything I can; etc.

I think I'll try out that WaterWetter in my Pathfinder while towing this summer, to see how it does.

Thanks for the war story on the 4.7L engine. Anything else you know about it is appreciated (maint., quirks, etc.).
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Old 07-02-2004, 09:01 AM #57
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Quote:
Originally posted by Pitbull
Edge, I double checked my service manual for my 2004 V8 and it states nothing but 5K mile service? Did they change it from 2003 to 2004?
I think they changed it, everything I look up for 03 has 5 or 7.5 and then if I look up 04 it only list 5k intervals, I wonder why they did that, maybe something to do with the engine sludge problems
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Old 07-02-2004, 12:08 PM #58
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Quote:
Originally posted by EDGE
I think they changed it, everything I look up for 03 has 5 or 7.5 and then if I look up 04 it only list 5k intervals, I wonder why they did that, maybe something to do with the engine sludge problems
Sludge? Never thought of that. I know the maintance manual is generic for all Trucks/SUV's which would account for several engines, so Toyota just decided to make it the shorter 5K service interval to make sure the engine that might sludge, would not go 7500 miles. Knowing it can't hurt the V8 to be changed every 5K miles. Makes sense. When I get to 60K miles and I'm out of warranty I will switch to Mobil 1 10w30 and go 7K mile OCI. I did that with my Landcruiser and traded at 137K miles.
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Old 07-02-2004, 12:49 PM #59
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Pitbull
You may have missed it but Toyota/Lexus had some problems with their 3L V6 engine and some 4cylinders, people where not changng the oil and the oil was becoming sludge so Toyota ended up replacing more then a few engines to keep it's name good when in fact the owners where just morons and never changed the oil, cars are still coming in with the problem so I guess they decided to cut it back to 5k, it's odd if you have the sludge problem long as you can show you changed the oil once a year unlimited miles they will replace your engine.

I have just realized in the past few years that most people do not even do anything but put gas in them, some of my fathers friends buy cars every 2-4 years and they change the oil once or twice within 40,000 miles, I was talking with this guy I know and he's telling me he bought this porsche and drove 43,000 miles and never changed the oil.

Some of the stuff I've seen people do with cars does not shock me in the least bit, you know how many times I've done something to my cars, minor like change the oil and my friends are like why.

My friend bought a Mustang GT, he had 8k on the car and was like what are you suppost to do to these things, I was like have you changed the oil it's suppost to be changed every 3-5, what does your dealer recommend, he was like I'll take it in when I have some time he got it changed at 14k, after he got it changed he was like, it has so much more power.

I think what it's coming down to is the manurfactures use to pretty much cover any problem or mistakes made with their cars, now they are realizing that people will suck them dry and they will not cover things like they use to, their was an article about manurfactures voiding or not covering certain parts of cars if they are use in any other manner then Daily Driving
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Old 07-02-2004, 01:05 PM #60
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Edge, I hear you. I was looking at used Lexus LX470 before I bought my 4runner. I looked at one "Certified" LX470, funny thing was that the service records showed that twice it had gone 10K miles between oil changes when the service manual recommended 5K mile changes to keep the warranty up. Even with this lapse in service they made this vehicle "Certified". I think you are better off buying new or not buying used unless you have all of the service records. JMHO
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