Developing Oil Life Calculator, see inside.

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Originally Posted By: randomhero439
Originally Posted By: Nick R

The shadow is water cooled. I can only find the capacity as 2.5L with filter change.


Let's also try a 2013 Ford F-150 Ecoboost 3.5L V6, with PU 5W-30, towing and not.


Shadow: 5700 miles or 7 months

F-150: 7600 miles or 9 months


7,600? Seems a little long for a Twin Turbo, DI engine. Of course it is PU.
 
Originally Posted By: Nick R
Originally Posted By: randomhero439
Originally Posted By: Nick R

The shadow is water cooled. I can only find the capacity as 2.5L with filter change.


Let's also try a 2013 Ford F-150 Ecoboost 3.5L V6, with PU 5W-30, towing and not.


Shadow: 5700 miles or 7 months

F-150: 7600 miles or 9 months


7,600? Seems a little long for a Twin Turbo, DI engine. Of course it is PU.


Pennzoil Ultra, 6qt sump, 7600 isnt to bad. If i apply 7600 miles to the same factor again, i get 5100 miles. Think since its turbo charged, the oil will likely be hotter than a non-turbo engine. So is that enough to counter act the DI part and burn off the excess fuel more quickly?

So maybe...
11700 miles (N/A multi-point injection)
7600 miles (Boost OR direct injection)
5100 miles (Boost & direct injection)

Im sure you can figure out the exponent # i use for boosted/DI cars on synthetic oil.
 
Last edited:
2002 Pontiac Grand am,3400 engine, 145K miles Citgo 5w-40 going to Valvlone NextGen 5w-30.

OH, and lets try ....
1973 Mercury Comet, 5.0L around town driving. Vaolvoline SynPower 5w-10
 
Originally Posted By: tinmanSC
2002 Pontiac Grand am,3400 engine, 145K miles Citgo 5w-40 going to Valvlone NextGen 5w-30.

OH, and lets try ....
1973 Mercury Comet, 5.0L around town driving. Vaolvoline SynPower 5w-10


Valvoline: 4000 miles or 5 months

Whats the oil sump on the mercury
 
Ok, I want to play too.
smile.gif
(First time poster here.)

Cars are:
99 Chevrolet Camaro Z28: 5.7L V8, 5.5Q running Pennzoil Platinum 5W30
12 Subaru Imprezza: 2.0L opposed-4, 5.3Q running Castrol Edge Titanium 0W20
13 Ford Focus ST: 2.0L Ecoboost I4, 5.7Q running Pennzoil Platinum 5W30

I'm currently changing the Z28 every six months (because that comes sooner than 5000 miles). The Imprezza and ST are running 7500 miles and 5000 miles respectively between changes.

Thanks!
 
2005 Ford Five Hundred AWD (CVT tranny) 3.0 Duratec 0W20 Mobil 1-EP 6Qt sump .

2007 Ford Fusion AWD 3.0 Duratec 0W30 German Castrol 6 Qt. sump
 
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Originally Posted By: Z28Ken
Ok, I want to play too.
smile.gif
(First time poster here.)

Cars are:
99 Chevrolet Camaro Z28: 5.7L V8, 5.5Q running Pennzoil Platinum 5W30
12 Subaru Imprezza: 2.0L opposed-4, 5.3Q running Castrol Edge Titanium 0W20
13 Ford Focus ST: 2.0L Ecoboost I4, 5.7Q running Pennzoil Platinum 5W30

I'm currently changing the Z28 every six months (because that comes sooner than 5000 miles). The Imprezza and ST are running 7500 miles and 5000 miles respectively between changes.

Thanks!


Chevy: 10400 miles or 13 months
Subaru: 10300 miles or 12 months
Focus: 6100 miles or 7 months
Im not sure how these cars are driven, but those are "daily driving" estimates
 
Originally Posted By: randomhero439
Started this little experiment awhile ago. Want to take part and see what you get?

Post the year/make/model/engine of your vehicle. Also the oil, grade, and API service.

Ill post back what my calculator spits out.


1995 Ford Explorer 4.0 V6

Royal Purple 5w30
 
Originally Posted By: randomhero439


WOW really nice work! Just one tweak, If the race/hard driving factor is applied, it should be applied to the HP/L calculation too.

Thanks. I think I've fixed it.

Also, the HP/L formula was updated to utilize (86.67/(HP/L))*(initial calculation) logic as this gives more realistic results for weaker (in terms of HP per liter) engines.
 
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Originally Posted By: Quattro Pete
Originally Posted By: randomhero439


WOW really nice work! Just one tweak, If the race/hard driving factor is applied, it should be applied to the HP/L calculation too.

Thanks. I think I've fixed it.

Also, the HP/L formula was updated to utilize (86.67/(HP/L))*(initial calculation) logic as this gives more realistic results for weaker (in terms of HP per liter) engines.


I checked it out, its not fixed. Dont set it to a exponent. Just simply multiply it in. So a S2000 with a HP/L of 110, You multiply the initial formula by 0.788. Only the "driving hard" factor can get applied to this.
 
Thanks. Somehow it reverted back to the old calculation. Can you check now?

The "driving hard" factor is still an exponent though, right?
 
Yeah looks good! You could apply the "driving hard" factor to Too Slicks formula.

I got 26mpg on one tank with an autocross lol. Obviously it was harder on the oil than the 26mpg would suggest.
 
Originally Posted By: randomhero439
Yeah looks good! You could apply the "driving hard" factor to Too Slicks formula.

I got 26mpg on one tank with an autocross lol. Obviously it was harder on the oil than the 26mpg would suggest.

You got 26 mpg in your V6 accord while doing autocross??? There must not have been much autocross in there.
smile.gif
In think in most cases, hard driving or racing should result in a significant MPG drop which TooSlick's formula would then account for.

I get 25 mpg in my car when I take it easy. With hard driving it'll be in mid teens.
 
Originally Posted By: LeakySeals
who all is editing this? are you in control?

Cells in green can be edited by anyone. The others can be edited by me.
 
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