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    Best oils for mpg?

    Have an '83 Tercel 4x4 wagon 62 HP engine...that is in FWD most of the time with occasional use of the rear axle. Currently using a dino 85W90 gear oil with moly in both the front diff/gearbox and the rear diff. Wanting to try Mobil 1 synth 85W90 in the transaxle (calls for GL-5) and will use...
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    Combining oil additives...what will work best?

    First I will relate my experiences when I started fooling around with some additives a few years ago. I was driving an '83 280ZX that was tuned to specs and totally stock. In fact I owned 2 of these cars in succession...both '83s 2.8 L straight 6 EFI with manual trans. Both got around 24 mpg...
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    Adding boric acid powder to oils and greases?

    Using info in this patent: http://patft.uspto.gov/netacgi/nph-Parse...p;l=50&s1=5,431,830.PN.&OS=PN/5,431,830&RS=PN/5,431,830 ...some people are adding boric acid to engine...trans...diff...wheel bearing, etc. This is a commercial version: http://209.200.118.63/index.cfm Some info...
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    Best gear oil for a higher mileage 4X4?

    Just bought a high mileage Nissan 4 cylinder 4X4. Everything is OK (as far as known) with the 4WD driveline, except for some slop in the shafts coming out of the transfer case. No leaks of any consequence. Manual calls for GL-4 in the trans...GL-5 in the transfer case and diffs. Questions or...
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    LiQUiD NiTROUS

    Here's an additive I'd like to see someone test.... http://www.liquidnitrous.com/ used at around .13 oz per 10 gallons? Maybe someone can explain how this stuff works.....
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    DIY penetrant?

    Was using PBBlaster the other day and noticed that it had the odor of mothballs to some extent....or naphthalene. My guess is take some good light oil base like ATF (synth best?)...add maybe 5% naphthalene (naptha?) and 5% actetone...you have a good penetrant? The volatile aromatics get into...
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    Petron Plus

    Petron Plus Engine Conditioner http://www.petronomics.com/ http://www.getpetron.com/autoprod/products.html Wondering if anyone has used this engine oil additive? "I have used ZMax, and it has made a added about 14% to my mileage. I normally use Petron Plus, it has added as much as 22%, and...
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    Texaco gas?

    As per this article: http://www.lubedev.com/articles/gasoline.htm What gas would I buy to have Texaco gas in the tank?
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    Hy-perlube Racing Formula

    I bought several bottles of this at about 1/2 price. Wonder if anyone has used this product? Would like to use it in an over 200K mile manual trans that is in good condtion...3 qts Mobil synth gear oil, 1 qt Hyperlube, and some moly. http://www.hyperlube.com/prod_racing.asp "HY-PER LUBE...
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    Combining moly & teflon...

    I previously owned 2 different '83 Datsun 280ZX cars with manual transmissions...pretty much identical. Both cars got around 24 MPG overall (+ or - 1 MPG) on a consistant basis. With the second Z, I got around an 8-10% increase in mpg by using a combination of teflon, molybdenum disufide, &...
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