synthetic differential fluid
#2
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If you search, you'll find a post from someone who put Royal Purple synthetic in his diff and felt a dramatic difference (so he says).
Since it is synthetic, theoretically the friction is lower and so you should get a RWHP gain, but it probably won't be significant enough to feel.
But it certainly can't hurt and since differential fluid is changed so seldom, the extra cost of synthetic is negligible.
Since it is synthetic, theoretically the friction is lower and so you should get a RWHP gain, but it probably won't be significant enough to feel.
But it certainly can't hurt and since differential fluid is changed so seldom, the extra cost of synthetic is negligible.
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I do not get any MPG increases but it does stay cleaner MUCH longer. I use Amosil Series 2000 in my cars and my tractor. I have to in the my Kubota BX22 since I can go over 8 MPH!
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Last edited by mburnickas; 09-02-04 at 08:49 AM.
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]I have a 98 gs400 . Are there any benefits using synthtic differential fluid over conventional? Any perfomance gains with the synthetic?
1. The fuel economy and performance gains are embarrassingly miniscule.
2. Slickly worded advertizing like "greater film strength" and "flows better when cold" is
all it takes to get the public to IMAGINE* synthetics will provice noticably better performance
and fuel economy and thus generate sales.
*This sales technique is called "Subliminal Messaging"
#6
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saber-- I would not go as far as saying is it BS on the flow & fuel economy . I know my Kubota BX22 had regular gear oil and it took a while to ingage the 4x4. With synthetic it was engages right then and there when I needed it.
Lastly, if you only had a 0.1 MPG gain over a 30,000 mile drain and fill, it would save about 400X times the original valve (of $8 per qt) or $129 savings over those miles @ 23.2 MPG.
If it added 0.05 it would save $64 etc etc. Just do the math since it pays for itself in a very short time.
If it isall "Subliminal Messaging" then you know more then billion dollar corporations (Ford, GM, MB, John Deere, Kubota, New Holland and all the other oil producers.) .
There is a differance and you get what you pay for.
Lastly, if you only had a 0.1 MPG gain over a 30,000 mile drain and fill, it would save about 400X times the original valve (of $8 per qt) or $129 savings over those miles @ 23.2 MPG.
If it added 0.05 it would save $64 etc etc. Just do the math since it pays for itself in a very short time.
If it isall "Subliminal Messaging" then you know more then billion dollar corporations (Ford, GM, MB, John Deere, Kubota, New Holland and all the other oil producers.) .
There is a differance and you get what you pay for.
Last edited by mburnickas; 09-02-04 at 09:01 AM.
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Lastly, if you only had a 0.1 MPG gain over a 30,000 mile drain and fill, it would save about 400X times the original valve (of $8 per qt) or $129 savings over those miles @ 23.2 MPG.
30,000 miles divided by 23.3 MPG = 1,293 gallons of gas consumed
6 gallons of gas saved = $12.00 saved
But even this tiny savings is all hypothetical because none of the major synthetic oil companies have provided data demonstrating any gain in MPG when using synthetic oil in the rear differential.
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#8
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Again they use it for more the MPG savings....Also the example I did was for me. Someone might be more and someone less.
Again I think the companies know a slight more then you, me etc. If you are going to "fight the man" with just MPG savings, you will lose. There is more involved then just that.
To close, the public could be non-educated but it is not as bad as you think. Each person is differant.
I have used syntheitc and use it longer then most (12K intervals for engine). So far no can post anything to prove it is bad. I have my oils tests, too bad no one else can post theirs. All I see it writing, saying this and that. Lets see some tests??? Anyone. Don't post picture of Toyota engine oil either or some dashboard of a car.
Again I think the companies know a slight more then you, me etc. If you are going to "fight the man" with just MPG savings, you will lose. There is more involved then just that.
To close, the public could be non-educated but it is not as bad as you think. Each person is differant.
I have used syntheitc and use it longer then most (12K intervals for engine). So far no can post anything to prove it is bad. I have my oils tests, too bad no one else can post theirs. All I see it writing, saying this and that. Lets see some tests??? Anyone. Don't post picture of Toyota engine oil either or some dashboard of a car.
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Last edited by mburnickas; 09-02-04 at 11:05 AM.
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Again they use it for more the MPG savings.
#10
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Well if you want to play on the MPG role fine. But there are many other reasons TO use them.
Lastly, most synthetic fluids do show increases but most are tests on a dyno at a constant speed. My driving is not constant nor do I care out MPG. There use far excess MPG proaganda. If you want email some companies on the subject.
Lastly, most synthetic fluids do show increases but most are tests on a dyno at a constant speed. My driving is not constant nor do I care out MPG. There use far excess MPG proaganda. If you want email some companies on the subject.
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"Don't post picture of Toyota engine oil either or some dashboard of a car. "
It's not often I "LOL", but I did on that line!
Mike, you crack me up!
It's not often I "LOL", but I did on that line!
Mike, you crack me up!
Last edited by PERRYinLA; 09-02-04 at 12:28 PM.
#12
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I LOL when I wrote it since some people love to push Toyota products....
We laugh, while others use this as proof!
We laugh, while others use this as proof!
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Last edited by mburnickas; 09-02-04 at 12:51 PM.
#14
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I know in my last truck (F350 diesel) the rear end was much smooth on take off with 425 lb of torque. Plus I could go much longer with drains and that was a life staver when draining 9 qt in a rear end.