I am using Esso XD-3 0W30 in my car with good success but I am wondering if this HDEO rated oil hurts fuel economy vs. a normal API type XW30 oil? I would consider changing to Redline 5W30 if I would get better power and mileage.
HDEO 0W30 hurt economy vs normal 0W30?
- Thread starter ringmaster
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From what little I have come across, HDEOs have in the past, not contained much in the way of friction modifiers as PCMOs as another approach to efficiency. HDEOs also tend to have higher HTHS numbers which can help keep parts seperated, but can result in increased viscous friction (I think), liken to using a higher weight engine oil.
In all honesty though, I'd give the ESSO 0w-30 a chance of at least this OCI. There's so many variables. Just what's the price difference between a qt of ESSO and Redline? What's easier for you to get?
In all honesty though, I'd give the ESSO 0w-30 a chance of at least this OCI. There's so many variables. Just what's the price difference between a qt of ESSO and Redline? What's easier for you to get?
Well i was using Amsoil Series 3000 which is a HDEO 5w30 and it hurt my fuel economy pretty good compaired to Amsoil regular 5w30. I just put in Amsoil Series 2000 which is a 0W30 but not a HDEO so well see how this works.
I think that an oil with more traditional zinc based anti-wear additives will have higher friction than one with less, everything else being equal. That's one reason why it's hard to make low friction oils designed to meet CAFE requirements that will also work in extended drain oils designed for more extreme operating conditions, as the typical way to do that is with lots of zddp, among other things.
My guess would be that you will get worse mileage with the Redline, not better. The surest way to get better gas mileage is to switch to a SM rated oil that has an API Sunburt on the front. If you want to stay with a 0w30 then I would suggest Mobil 1. I see you are located North and if you are getting XD-3 this suggests Canada. I believe the best 0w30 available here is PetroCan Artic, full synthetic. Not guaranteed, but the TECH 2000 at Walmart may be the same oil. However, based on checks I've done you likely can get it cheaper than Walmart from a PetroCan bulk dealer.
Last point to remember is that this gas mileage thing is not that significant - perhaps in the order of 1%, so gas mileage goes from 30 mpg to 30.3, is it worth it? I buy SM oil for other benefits than gas mileage. The reduced ZDDP is not a concern for me, as I don't believe in extended oil changes.
It doesn't matter what any of us think. There are just too many variables involved when it comes to gas mileage. The only way to KNOW is to try it. I wouldn't neccesarily knock Redline when it comes to mileage. What scares me about Redline are the UOAs. Other oils don't seem to make such drastic changes in wear. May be a good thing. I don't know.
It could vary much more than that depending on the particular vehicle in question, climate, time of year, driving conditions, trip length, etc.
The problem with that approach is accuracy. I would suggest it is impossible for anyone to keep track of their fuel mileage accurately enough to detect any difference in gas mileage due to oils, when the basic grades are compareable. The difference between similar grade oils, which I believe is nearly directly related to the HTHS, is likely 1% or less. How can you compare mileage on one OCI to another with a different oil and be sure all the conditions are the same? Highway vs city? Temperatures? Driving agressiveness? Not a chance. Even in a lab this is very difficult. That is why the only reasonable way is to go by the Sunburst logo and the grade. Thinner will be better, and the ones with the logo are much more likely to be better than the ones without. But the difference is very small.
you'll save far more gas by using the brake less and soft acceleration than the difference between 2 0w30 oils
modified driving style can easily make 10% improvement, energy conserving oil 1-2% max...
if you have new rig, worry about cat. and O2 sensor damage from high zddp Phosphorus 1300 Zinc 1350 in 2005 VOA Esso XD-3...a dying cat or O2 sensor will cause far more lowering of fuel mileage
Esso XD-3 is an outstanding oil...wish it was avail. south of the border
if you want to roll the gas mileage dice, try a thin 0w20 full synthetic
modified driving style can easily make 10% improvement, energy conserving oil 1-2% max...
if you have new rig, worry about cat. and O2 sensor damage from high zddp Phosphorus 1300 Zinc 1350 in 2005 VOA Esso XD-3...a dying cat or O2 sensor will cause far more lowering of fuel mileage
Esso XD-3 is an outstanding oil...wish it was avail. south of the border
if you want to roll the gas mileage dice, try a thin 0w20 full synthetic
I could easily detect the difference between a thick 0w30 and a thin 0w30 in one vehicle I own. The key is to keep your trips consistent, monitor tire pressures, record total miles/gallons. On the otherhand, some cars or the conditions they're operated in, may not see a differnce.
The fuel savings from using Mobil 1 0w30 may be outweighed by the extra cost. It's about $4/L more, so you might spend an extra $16 per change, and you might save 1% on fuel, which in my car would be about 10L of gas in 12500 km.
If they're fully compatible, you might get the best of both worlds by mixing a 0w20 half n half with the XD3 0w30. That should give about 10 cSt at a cost half way between XD3 and the other oil.
If they're fully compatible, you might get the best of both worlds by mixing a 0w20 half n half with the XD3 0w30. That should give about 10 cSt at a cost half way between XD3 and the other oil.
I seriously cat poisoning is the problem everyone seems to think it is. I think you'd need to burn an awful lot of oil to see detrimental effects. More often, this would tend to be on the higher mileage or worn out motors to have a consumption rate high enough. JMHO.
It is a new rig, 2005 model! Is the XD-3 likely to damage the cat and 02 sensors?
Im not so sure heavier oil hurt economy like you think, I went from a 5W30 to 5W40 in a Chevy 4.3 - and the mileage didnt change a bit. My GTO will cruise along at an average of 18.5 city/hiway combo for a month, then one day itll drop to 17 for no apparent reason. I think using different fuels will alter mileage before heavier oil does. Now if you go from 0W30 to 5W50 it might, but not enough to cost you another $5 a tank.
Is this your 2005 Forester XT?
You don't have to burn or use oil. The volatile components of the ZDDP end up going through the CAT shortly after the oil is put into use.
The effect is real and measurable.
Yep, you won't see much difference in a SBC or a 3/4 of a SBC.
Yes it is! Nice guess
Their is no way that the under reaql world conditions anyone would be able to accurately measure their MPG close enough to reflect the difference. We are talking about compareing Esso XD-3 to a thin M1 0W30 correct! You might as well ask how many angles can dance on the head of a pin then prove it!!Their are too manyother factors at work for you to accurately measure only the difference on 0W30 made as compared to another 0W30!!
P.S. What is next seperateing two ply toilet paper into one ply?
P.S. What is next seperateing two ply toilet paper into one ply?
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