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I have have put a lot of thought into this oil. #4108219 05/27/16 01:45 PM
Joined: Sep 2014
Posts: 267
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Mathew_Boss Offline OP
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Bought a new 2016 Focus. 2.0L GDI. I know GDI's mean two things, fuel dilution and deposits. So I went looking for a very thick 5w-20 that also tests well in the TEOST.

I settled on Castrol Edge EP (Gold Bottle). 100* Cst is 8.9, higher then PUP or Synpower. It also scored the best in Amsoil's 2013 TEOST test. I will be following the IOLM with a maximum of 1 year or 10k miles. I am going to test 3 filters for gas mileage, RP, Purolator Boss and the Purolator One. Which ever gives me the best mpg's will win. Thoughts?

Also, my top off oil will be GTX Magnatec 5w-20. Its Cst is 9.1


1.7k Mile 2019 Toyota Highlander LE Plus AWD 3.5L 2GR-FKS. PP or EDGE EP 0W20 w M1 or RP Filters

66k Mile 2015 Dodge Charger 3.6L Pentastar Pennzoil Platinum, QSUD or EDGE EP 0/5W20, or 5W30
Re: I have have put a lot of thought into this oil. [Re: Mathew_Boss] #4108229 05/27/16 01:51 PM
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Posts: 8,847
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440Magnum Offline
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Originally Posted By: Mathew_Boss
I am going to test 3 filters for gas mileage, RP, Purolator Boss and the Purolator One. Which ever gives me the best mpg's will win. Thoughts?


My thought is that its an engineering impossibility for an oil filter that its functioning correctly to produce a measurable effect on fuel economy. And probably even a plugged filter that goes into full bypass wouldn't produce any measurable effect, to be honest. That little bit of higher oil pump load is way down in the noise.


'66 Dodge Polara & '69 Dodge Coronet R/T both 440/727
'08 Ram 1500 4.7/545RFE
'12 Challenger SRT8 392/6-speed
'99 XJ 4x4 4.0/AX15, '14 WK2 4x4 3.6/8HP
Re: I have have put a lot of thought into this oil. [Re: Mathew_Boss] #4108231 05/27/16 01:52 PM
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FutureDoc Offline
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Castrol is a fine oil...

I (personally) will never use it as it is a BP product. See: Gulf of Mexico/Deepwater Horizon.

As for the oil filter, Purolator has had several years of producing a sub-standard filter that tear open (thus nicknamed "tearolators". Motorcraft is still a Purolator product but they have been a little better, but can still tear. WIX or even Fram are better choices. Champs are fine too.

Last edited by FutureDoc; 05/27/16 01:54 PM.

'15 Hyundai Genesis Coupe 3.8 - Havoline 5w-30 & OEM
'14 Subaru Outback 2.5 - NAPA 0w-20 & Wix
'01 Toyota MR2 Spyder - Havoline 5w-30 & Wix
'82 Chevy C10
Re: I have have put a lot of thought into this oil. [Re: FutureDoc] #4108239 05/27/16 02:03 PM
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Quattro Pete Offline
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Originally Posted By: FutureDoc
I (personally) will never use it as it is a BP product. See: Gulf of Mexico/Deepwater Horizon.

And which major oil company has not had some kind of a spill disaster in its past?


2002 530i   2015 Q5 3.0T   2018 Charger SRT
Re: I have have put a lot of thought into this oil. [Re: 440Magnum] #4108242 05/27/16 02:05 PM
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2015_PSD Offline
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Originally Posted By: 440Magnum
Originally Posted By: Mathew_Boss
I am going to test 3 filters for gas mileage, RP, Purolator Boss and the Purolator One. Which ever gives me the best mpg's will win. Thoughts?
My thought is that its an engineering impossibility for an oil filter that its functioning correctly to produce a measurable effect on fuel economy. And probably even a plugged filter that goes into full bypass wouldn't produce any measurable effect, to be honest. That little bit of higher oil pump load is way down in the noise.
approved You would need a controlled testing environment and highly calibrated equipment to even begin to test and see any differences--in essence your right foot and tire pressure will have more of an impact on MPG than any oil filter. Castrol Edge is decent oil, though I fight with myself sometimes over it and M1. M1 typically wins.


2019 o)|||||(o Rubicon Wrangler Unlimited 3.6L V6 [Castrol Edge + Mahle]
2018 Mercedes Benz C300 2.0L Turbo [Pennzoil Platinum + Mann filter]
Re: I have have put a lot of thought into this oil. [Re: 440Magnum] #4108243 05/27/16 02:05 PM
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WANG Offline
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Originally Posted By: 440Magnum
Originally Posted By: Mathew_Boss
I am going to test 3 filters for gas mileage, RP, Purolator Boss and the Purolator One. Which ever gives me the best mpg's will win. Thoughts?


My thought is that its an engineering impossibility for an oil filter that its functioning correctly to produce a measurable effect on fuel economy. And probably even a plugged filter that goes into full bypass wouldn't produce any measurable effect, to be honest. That little bit of higher oil pump load is way down in the noise.








I concur.


"Sportbikes have evolved from an axe into a scalpel.
Problem is, the average sportbike buyer is more lumberjack than surgeon." -Richard Pollock
Re: I have have put a lot of thought into this oil. [Re: Quattro Pete] #4108244 05/27/16 02:06 PM
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Originally Posted By: Quattro Pete
Originally Posted By: FutureDoc
I (personally) will never use it as it is a BP product. See: Gulf of Mexico/Deepwater Horizon.

And which major oil company has not had some kind of a spill disaster in its past?



Truth


Keeping the forces of evil at bay
2016 Chevy Malibu LT 1.5 Liter Turbo
2017 Chevy Equinox LT 2.4 Liter
2007 Pontiac Grand Prix 3800 Series III
Re: I have have put a lot of thought into this oil. [Re: Mathew_Boss] #4108259 05/27/16 02:34 PM
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Vuflanovsky Offline
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I think your oil choice is fine...

I also understand the sentiment about BP as it's not about if they're the typical oil company that's involved in a spill, etc., it's about how hard it was for their corporate culture to make things right after cost-cutting and not inspecting created this mega spill. Their CEO was a piece of human sh** as far as I'm concerned and if I lived on the Gulf Coast I'd likely feel the same way.

Re: I have have put a lot of thought into this oil. [Re: Mathew_Boss] #4108262 05/27/16 02:35 PM
Joined: Dec 2005
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kschachn Offline
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Originally Posted By: Mathew_Boss
I am going to test 3 filters for gas mileage, RP, Purolator Boss and the Purolator One. Which ever gives me the best mpg's will win. Thoughts?


How will you isolate the effect of the oil filter in everyday driving? You will have to control wind speed, wind direction, humidity, barometric pressure, vehicle speed, vehicle load (both from topography and from accessory loads), driver effects (temperament, mood, etc.), fuel energy density (a real problem unless you buy standardized test fuel), temperature, other drivers (how they influence your trip), time of day (sun loading on vehicle temperature), aerodynamic cleanliness of the vehicle, and anything else I forgot. Then you would have to drive the vehicle on the exact same route (same number of left and right turns, etc.)

Even if you did all that I still don't think you would be isolating the single variable of an oil filter. After all, this will be a relatively small effect so you need to reduce the variability (noise) in your experiment to a very small level to have a statistically relevant value for the one variable you are looking to measure.


1994 BMW 530i, 252K
1996 Honda Accord, 288K
1999 Toyota Sienna, 434K
2000 Toyota ECHO, 284K
Re: I have have put a lot of thought into this oil. [Re: kschachn] #4108271 05/27/16 02:57 PM
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Mathew_Boss Offline OP
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Originally Posted By: kschachn
Originally Posted By: Mathew_Boss
I am going to test 3 filters for gas mileage, RP, Purolator Boss and the Purolator One. Which ever gives me the best mpg's will win. Thoughts?


How will you isolate the effect of the oil filter in everyday driving? You will have to control wind speed, wind direction, humidity, barometric pressure, vehicle speed, vehicle load (both from topography and from accessory loads), driver effects (temperament, mood, etc.), fuel energy density (a real problem unless you buy standardized test fuel), temperature, other drivers (how they influence your trip), time of day (sun loading on vehicle temperature), aerodynamic cleanliness of the vehicle, and anything else I forgot. Then you would have to drive the vehicle on the exact same route (same number of left and right turns, etc.)

Even if you did all that I still don't think you would be isolating the single variable of an oil filter. After all, this will be a relatively small effect so you need to reduce the variability (noise) in your experiment to a very small level to have a statistically relevant value for the one variable you are looking to measure.


It won't be perfect but over the course of day 7 to 10 thousand miles it will cover a wide range of variables


1.7k Mile 2019 Toyota Highlander LE Plus AWD 3.5L 2GR-FKS. PP or EDGE EP 0W20 w M1 or RP Filters

66k Mile 2015 Dodge Charger 3.6L Pentastar Pennzoil Platinum, QSUD or EDGE EP 0/5W20, or 5W30
Re: I have have put a lot of thought into this oil. [Re: Mathew_Boss] #4108276 05/27/16 03:07 PM
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Kuato Offline
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Originally Posted By: Mathew_Boss
Bought a new 2016 Focus. 2.0L GDI. I know GDI's mean two things, fuel dilution and deposits. So I went looking for a very thick 5w-20 that also tests well in the TEOST.

I settled on Castrol Edge EP (Gold Bottle). 100* Cst is 8.9, higher then PUP or Synpower. It also scored the best in Amsoil's 2013 TEOST test. I will be following the IOLM with a maximum of 1 year or 10k miles. I am going to test 3 filters for gas mileage, RP, Purolator Boss and the Purolator One. Which ever gives me the best mpg's will win. Thoughts?

Also, my top off oil will be GTX Magnatec 5w-20. Its Cst is 9.1


Congrats on the new wheels; that should be a good oil to use. I agree that the mpg test with different filters won't be conclusive but if you've got 'em, use 'em.


Originally Posted By: Quattro Pete
Originally Posted By: FutureDoc
I (personally) will never use it as it is a BP product. See: Gulf of Mexico/Deepwater Horizon.

And which major oil company has not had some kind of a spill disaster in its past?



I'm on the same page with FutureDoc here; accidents are accidents and although most companies have had some sort of spill, this one was caused by the company's intentional cost cutting and bypassing of safety regulations.

THAT is why I don't knowingly use BP.

Last edited by Kuato; 05/27/16 03:07 PM.

Thick vs Thin test: 15k / 43k miles complete
Re: I have have put a lot of thought into this oil. [Re: Mathew_Boss] #4108282 05/27/16 03:09 PM
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kschachn Offline
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Originally Posted By: Mathew_Boss
It won't be perfect but over the course of day 7 to 10 thousand miles it will cover a wide range of variables


No, it's much more difficult than that. You're describing trying to randomize the variables, but in order to do that you would have to do an analysis to determine how long that would take. If it was even possible it would likely take much longer than 7-10 thousand miles.

Your basic and most fundamental problem is that the effect of an oil filter on fuel economy (if it even exists) is going to be a very small high-order effect living among some very influential variables. Measuring a small result in high noise is very, very difficult. And measuring it is only the first step as then you have to be able to attribute the measurement to the variable (oil filter).

For reference, I once linked an article on here that showed that even at the same gas station the energy density of gasoline varied by up to 4%. This was independent of any blending changes that might occur for winter or summer. So unless your oil filter affects the outcome by more than this variable you will never be able to measure it nor attribute a measurement to another variable.


1994 BMW 530i, 252K
1996 Honda Accord, 288K
1999 Toyota Sienna, 434K
2000 Toyota ECHO, 284K
Re: I have have put a lot of thought into this oil. [Re: Mathew_Boss] #4108307 05/27/16 03:44 PM
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SR5 Online Content
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OP, nice car and nice oil, enjoy.


---------------------------------------------------------------------------------
Valvoline DuraBlend 10W40 SN & A3/B4 semi-synthetic + Valvoline V06 synblend media filter
Re: I have have put a lot of thought into this oil. [Re: 440Magnum] #4108373 05/27/16 05:21 PM
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Triton_330 Offline
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Originally Posted By: 440Magnum
Originally Posted By: Mathew_Boss
I am going to test 3 filters for gas mileage, RP, Purolator Boss and the Purolator One. Which ever gives me the best mpg's will win. Thoughts?


My thought is that its an engineering impossibility for an oil filter that its functioning correctly to produce a measurable effect on fuel economy. And probably even a plugged filter that goes into full bypass wouldn't produce any measurable effect, to be honest. That little bit of higher oil pump load is way down in the noise.

Correct me if I'm misinformed, but...

In terms of oil filters affecting gas mileage, isn't it just as simple as least resistance, or in other words, highest flow rate?

Assuming the filters are of [basically] the same size, and have the same relief valve psi setting... I would think it comes down to flow rate.

~ Triton


2001 Ford F-150 XLT 4x4 5.4L V8 ~132k miles
-> PPHM 5w-20 w/Fram Ultra
1989 Chevrolet Camaro RS 5.0L TBI V8 ~48k miles
-> Milesyn SB 5w-30 w/Puro Boss
Re: I have have put a lot of thought into this oil. [Re: Triton_330] #4108383 05/27/16 05:31 PM
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freshcopedawg Offline
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Prolly wanna go ahead and throw out the RP filter. They're so dang heavy compared to the others it's GOT to bring mileage down. grin

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