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Havoline ProDs #5223337 09/26/19 05:47 PM
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tiger862 Offline OP
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I have noticed after the oil change to ProDS 5w20 my fuel economy has dropped. I used excuse of idling, city driving etc. Have checked everything from computer codes to tire pressure nothing is off. I had a funeral to go to so about 400 miles and again I am off right at 3 mpg on average. I had time today to check bottles and website which now I can say it is oil. The only one that is fuel economy one is 0w20 which states an improvement of a 2% over other grades and 5w20 can be replaced with 0w20 to get fuel savings. All grades are for extended drains with severe driving not fuel economy
My situation 60 miles shorter on tank of fuel at 2.50 a gallon is costing me 7.50 a tank so savings on oil is wiped out by 1 tank therefore costing me more money
On the the trip before if I set cruise at 70 dash would show high 28 with average of 24.5 so checked this morning and it shows 23.6 and highest I saw was 25.3 and will know exact figure once I fill up but already know it is off. Less than 12k on vehicle with 20.9 average before change and 17 average after change
Lowest before change was 17 lowest after was 13
Now do I dump this or wait? 2500 miles on oil since April so I was going to April then decided to change at 5k since mileage is down now I know how much it costs more I just want to cut my losses and dump it. It is a shame cause I don't have any problems other than fuel mileage. Opinions appreciated.


Tiger862
2018 Grand Caravan
Re: Havoline ProDs [Re: tiger862] #5223346 09/26/19 05:59 PM
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toneydoc Offline
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Personally I doubt any change of oil to a 5w20 would cause a 3 mpg drop in mileage
However I might possibly be wrong on this issue but I doubt it


1994 Jeep 167k NextGen 10w30
2014 Camry 44k Castrol Magnatec 0w20
2018 Jeep Cherokee 8k Pennzoil Platinum 5w30
2014 HD Ultra 51k Mobil1 15w50
Re: Havoline ProDs [Re: tiger862] #5223351 09/26/19 06:07 PM
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Imp4 Offline
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Changing your oil to Havoline ProDs did not reduce your gas mileage by almost 20% (20.9 mpg vs 17 mpg).
You couldn't have done that if you changed to a 20w-50....
You likely either have something else going on or your driving style has changed.


2001 Mitsubishi Galant 2.4 - 165k+
Grandma's creampuff...
Re: Havoline ProDs [Re: tiger862] #5223352 09/26/19 06:07 PM
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JohnnyJohnson Offline
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My Toyota generally uses a 5w-30 but I'm running Havoline Pro DS now 10w-30 my MPG hasn't changed enough to measure a significant difference up or down.


2004 Corolla 138781
Out: Havoline Pro DS 10w-30 Purolator PureOne 10-29-19 136457
In: Pennzoil Platinum HM 5W-20 ST 4386
2006 Duramax 77060
Out: T6 5W-40 XG9100 73909
In: Rotella Dino PH9100 11-3-19
Re: Havoline ProDs [Re: tiger862] #5223358 09/26/19 06:15 PM
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burla Offline
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Winter Blend Gas.

Re: Havoline ProDs [Re: tiger862] #5223367 09/26/19 06:30 PM
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MParr Offline
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I don’t think it was the oil. More likely it was the GASOHOL that you put in your tank. There is no need to dump the oil before your normal oil change interval. The oil didn’t have a thing to do with your reduced fuel mileage.

Last edited by MParr; 09/26/19 06:36 PM.

2019 VW Tiguan SE 2.0 TSI Now: Castrol Professional OE LL IV 0W20 & OE VW/Mann
2017 Ford Escape SE 2.0T Now: Kendall GT-1 Max 5W30 FS & NAPA Gold 1348
93 Octane Non-Ethanol
Re: Havoline ProDs [Re: tiger862] #5223370 09/26/19 06:33 PM
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Skippy722 Offline
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I went to 0w40 and my fuel economy is exactly the same if we go by the fuel economy gauge. Switching oils cannot cause that drastic of a loss, for that would indicate HUGE pumping losses OR a huge increase in internal friction, aka heat and wear.


2016 Chrysler 300S v6
2018 Dodge Grand Caravan GT

Slight Mopar obsession
Re: Havoline ProDs [Re: tiger862] #5223409 09/26/19 07:28 PM
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kschachn Offline
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You've been on here since 2012 and you think going from a 0W-20 to a 5W-20 dropped your fuel economy to an extent you could actually measure it in real-word driving?

Please. Just please.


1994 BMW 530i, 251K
1996 Honda Accord, 280K
1999 Toyota Sienna, 430K
2000 Toyota ECHO, 284K
Re: Havoline ProDs [Re: tiger862] #5223415 09/26/19 07:34 PM
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danez_yoda Offline
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Now if you change it to something else and the gas mileage does not go up then the Havoline permanently ruined your engine. smile

Highly doubt its the oil but this is not the first story I've heard like this with <insert your budget oil here> causing a sudden and immediate gas mileage drop.

What oil did you use before? Are you using the same gas station, same driving pattern, same lead foot. One good goose off the red light can drink quite a bit of gas.

I would benchmark it really well at the same pump (miles / gallon / tank) over several fillups. Then switch back to your favorite oil. Test it for a few tanks and measure at the SAME pump.
If that increases your gas mileage back to where it was before, then you have good reason to not use havoline.

Re: Havoline ProDs [Re: kschachn] #5223426 09/26/19 07:44 PM
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PimTac Offline
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Originally Posted by kschachn
You've been on here since 2012 and you think going from a 0W-20 to a 5W-20 dropped your fuel economy to an extent you could actually measure it in real-word driving?

Please. Just please.




Careful there kschachn, you will be accused of contributing nothing to the forum and be labeled as a personal attack hound.


There is more to the story here. We may never know.


2017 Mazda CX5
Valvoline Advanced Synthetic 0w20
Roki OEM filter.
Re: Havoline ProDs [Re: kschachn] #5223446 09/26/19 07:57 PM
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bbhero Online Content
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Originally Posted by kschachn
You've been on here since 2012 and you think going from a 0W-20 to a 5W-20 dropped your fuel economy to an extent you could actually measure it in real-word driving?

Please. Just please.



I got an idea kschachn... Try taking your attitude improvement medication... It only works if you take it consistently LOL


Nissan Altima 3.5 Coupe
Cam2 SuperproMax 5w30 Carquest r84356 Oil filter
"Treat your family like your friends and treat your friends like your family."
Re: Havoline ProDs [Re: tiger862] #5223450 09/26/19 08:02 PM
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bbhero Online Content
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No way it was the oil.... No way.

And calculation of fuel economy is really not all that easy to get solid results in real world conditions.

Just wind direction and speed of the wind can have a great impact on fuel economy. Not to mention what you can do with just using your right foot differently can do.


Nissan Altima 3.5 Coupe
Cam2 SuperproMax 5w30 Carquest r84356 Oil filter
"Treat your family like your friends and treat your friends like your family."
Re: Havoline ProDs [Re: tiger862] #5223451 09/26/19 08:03 PM
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The_Cams Offline
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Couldn't imagine it being the oil. Winter blend fuel suggestion is very possible. Try different gas stations.

Re: Havoline ProDs [Re: bbhero] #5223454 09/26/19 08:03 PM
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kschachn Offline
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Originally Posted by bbhero
I got an idea kschachn... Try taking your attitude improvement medication... It only works if you take it consistently LOL

My attitude is fine, it is just that I know for a fact that the problems in measuring real-world fuel economy has been explained before. It is not possible to measure such a thing as this outside the laboratory.

And beyond that, especially in Louisiana there is no guarantee the 5W-20 is any thicker than the 0W-20. It may well be thinner.

I'm not the only one in this thread saying it is whack, but I bet I'll be the only one called out for it smile


1994 BMW 530i, 251K
1996 Honda Accord, 280K
1999 Toyota Sienna, 430K
2000 Toyota ECHO, 284K
Re: Havoline ProDs [Re: kschachn] #5223479 09/26/19 08:43 PM
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tiger862 Offline OP
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Originally Posted by kschachn
You've been on here since 2012 and you think going from a 0W-20 to a 5W-20 dropped your fuel economy to an extent you could actually measure it in real-word driving?

Please. Just please.

Never said from 0w20 to 5w20
I went from 5w20 to 5w20 Napa (Valvoline) to Havoline ProDs cause it was cheaper
I have logged 8000+ miles hand calculated on fuelly and I have tried everything to explain it as it started right after oil change. I now have 2500 miles and right at 6 months of data on this change which I would never have done if I didn't see such a drop. Only change was oil and once I change it I will see if it comes back. I can't explain it and still won't know until I change it
My reference to 0w20 was from the PDS of Havoline ProDs stating 0w20 could get better fuel mileage over 5w20 cause it was fuel economy oil unlike 5w20.


Tiger862
2018 Grand Caravan
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