Castrol euro 5-40

[Josebd]

Would it hurt anything to use this oil?
I do short trips to town( 15 miles each way,in town I go to 3 or 4 different stores,so a lot of stop and go I would say) I do get fuel in oil,especially in the winter time,summer time not to bad

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[Loweredon33s]

I don’t see a reason not to. I use Motorcraft 5w50. I have noticed much less fuel dilution and the oil still feels like oil at 5k instead of gritty gas water. I previously used Motorcraft 5w30 semi synthetic. I still try to change it around 4k but I have gone over that before.

 

[Frenchy]

Last I checked the Ranger with the2.3 EcoBoost calls for 5W-30. I would stay with 5W-30 if it were me.

 

[Joranger2023]

Last I checked the Ranger with the2.3 EcoBoost calls for 5W-30. I would stay with 5W-30 if it were me.

Yes it does, but for fuel dilution it’ll help keep viscosity better

 

[Loweredon33s]

Yes it does, but for fuel dilution it’ll help keep viscosity better

Unless you’re in a cold climate, I see no negatives. Especially if tuned and making extra power or heavy duty use.

 

[Frenchy]

Yes it does, but for fuel dilution it’ll help keep viscosity better

I never had any fuel dilution issues with my ranger and it got up to 50,000 miles without issues. If it were such an issue then it would have been a bigger issue.

 

[Frenchy]

Unless you’re in a cold climate, I see no negatives. Especially if tuned and making extra power or heavy duty use.

Unless it is a race vehicle(probably isn't) then I see no need for a heavier weight oil. Best to stick with the factory weight

 

[Joranger2023]

It’s common for direct injection engines especially eco boost engines
Do a search, it’s very common
My wife has a 2018 Chevrolet sonic, 4 cylinder, no turbo, direct injection, it does the same thing

 

[Loweredon33s]

Unless it is a race vehicle(probably isn't) then I see no need for a heavier weight oil. Best to stick with the factory weight

Mine is a daily, been running 5w50 for around 15k now (3-4 oil changes) and noticed a marked improvement in dilution and quality of the oil at the end of its cycle with zero negative effects. I’m quite hard on my truck and it makes considerably more power than stock, I see it as cheap insurance for my use. I don’t see any reason not to use it if he wants.

 

[Dgc333]

FWIW, Ford recommends 5w-50 in the Mustang with the 2.3 Ecoboost when it has the performance package.

 

[Loweredon33s]

FWIW, Ford recommends 5w-50 in the Mustang with the 2.3 Ecoboost when it has the performance package.

RS too.

 

[Grumpaw]

Last I checked the Ranger with the2.3 EcoBoost calls for 5W-30. I would stay with 5W-30 if it were me.

I agree....
Ford must have a valid reason to recommend a specific weight oil, even between engines of the same "make" as the engine in the Mustang and the one in our Rangers.
The Mustang may have a 5W50 and our Rangers a 5W30.......makes no difference as to initial cost to Ford as to the recomendations....it must have to do with engine rating and possibly internals.
I use synthetics in me Ranger, and will redelly admit to switching between brands as to cost, and changing oil every 5000 miles.
But I'll abide by Fords recommendation for the 5W30. And I run the truck as a daily driver, and offshoot that by towing a 7000 lb camper, sometimes for several weeks at a time, so it does get used hard.
They do make a 5W30 "Euro" synthetic....why not just stick with the recommended weight rating ???

 

[Frenchy]

I agree....
Ford must have a valid reason to recommend a specific weight oil, even between engines of the same "make" as the engine in the Mustang and the one in our Rangers.
The Mustang may have a 5W50 and our Rangers a 5W30.......makes no difference as to initial cost to Ford as to the recomendations....it must have to do with engine rating and possibly internals.
I use synthetics in me Ranger, and will redelly admit to switching between brands as to cost, and changing oil every 5000 miles.
But I'll abide by Fords recommendation for the 5W30. And I run the truck as a daily driver, and offshoot that by towing a 7000 lb camper, sometimes for several weeks at a time, so it does get used hard.
They do make a 5W30 "Euro" synthetic....why not just stick with the recommended weight rating ???

Some just think they know more than the engineers that spent way more money and also make way more money than us individuals

 

[dtech]

Likely more about MPG rating, a good number of makes recommend 5w -20 or 0w-20 , Toyota and Hyundai come to mind. But a number of these also say you can also use a heavier weight, I doubt that going to a 5w-40 has much of any downside save for some small impact on mpgs. But I'm good with 5w-30, would only switch to heavier if the engine began burning oil which has happened to both of the junk Hyundai engines in my family although my daughter's Tucson was totaled and replaced by a Subie - which I was surprised to learn has a oil level warning light.

 

[Frenchy]

Likely more about MPG rating, a good number of makes recommend 5w -20 or 0w-20 , Toyota and Hyundai come to mind. But a number of these also say you can also use a heavier weight, I doubt that going to a 5w-40 has much of any downside save for some small impact on mpgs. But I'm good with 5w-30, would only switch to heavier if the engine began burning oil which has happened to both of the junk Hyundai engines in my family although my daughter's Tucson was totaled and replaced by a Subie - which I was surprised to learn has a oil level warning light.

My guess is Subaru is already aware of the potential issue and wants to give peace of mind to those that do or don't know

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