Couldn't pass up some syntec 0w40 on clearance

Status
Not open for further replies.
Originally Posted By: ryanschillinger
... 5-quart jugs of black bottle syntec 0w40 European vehicle on a clearance table for $10 each. Took all 3 because I'm a sucker for a good deal haha! I've been running 5w20 in my 96 civic but this should do just fine I would imagine. Right? ....Thoughts on using it in the Civic? Spec was 5w30 but has been updated to allow 5w20.


Hi Mate,
I'm sucker for a good deal too. I would run that oil in your Civic or Fords.

Over here Castrol made a Magnatec Professional 5W-40, which I think is a bulk oil for workshops, garages etc

It states the 5W-40 grade is suitable for use in the following specifications: 5W30, 5W40, 10W30, 10W40, 15W40 and 20W40.

So Castrol say running 5w40 is ok in a car specced for 5w30, then I'm sure a 0w40 will be fine too.

Oils don't fit into cars like keys into locks, they can be optimized for car / conditions / temperature / driving style / etc. But if it was so fixed, why would Honda say it's OK to go down a grade and Castrol up a grade.

You may see a minor drop in fuel economy, and a increase in protection if you decide to track or race the car.
If you are not racing and not stressed out about fuel economy then it shouldn't be a big deal.

Give it a go, and report back. Tell us how it went.
 
Originally Posted By: SilverC6
Take the Castrol back to the store and start all over again.

A bargain is not a bargain if you can't use it.


Why can't it be used ?
 
I use hdeo in the old fords. Regular 15w40. Usually shell rotella but this change the truck got supertech with a motorcraft filter. I was confident the 0w40 would do fine in the civic. I'm surprised to hear others think it might not be. I guess I have 5k miles to think about it. I just changed the civic oil less than 1k ago.
 
Originally Posted By: Shannow
Originally Posted By: SilverC6
Take the Castrol back to the store and start all over again.

A bargain is not a bargain if you can't use it.


Why can't it be used ?



It's not optimal for any of his applications.

We can all wear shoes 5 sizes to big but why not get it right.
 
Originally Posted By: ryanschillinger
If I use it in anything, it will be the civic. And I'll post an update on how it performs.


Looking forward to it!
 
Originally Posted By: SilverC6
Originally Posted By: Shannow
Originally Posted By: SilverC6
Take the Castrol back to the store and start all over again.

A bargain is not a bargain if you can't use it.


Why can't it be used ?



It's not optimal for any of his applications.

We can all wear shoes 5 sizes to big but why not get it right.


That's not a great analogy. If you tried walking in shoes 5 times too big you would have serious issues. If he used this oil in any of his applications he probably wouldn't notice anything. Not optimal or not, it isn't a huge hindrance or anything of that nature.
 
Originally Posted By: SilverC6
We can all wear shoes 5 sizes to big but why not get it right.


Poor analogy...

Syntec 0W20 has the same viscosity at 25C as the 0W40 has at 40C, and same viscosity at 80C ans the 0W40 has at 100C.

Nothing like "5 sizes"
 
Hi Dave,

Originally Posted By: dave1251
By watching this thread and non-sense that is posted.

I wonder way members leave this site.


You're correct - I no longer wonder why people leave and never return.........sad that!
 
Originally Posted By: SilverC6
Take the Castrol back to the store and start all over again.

A bargain is not a bargain if you can't use it.



What?

You're first post was t enough.


Gimme a break already. Use the stuff and ignore this nonsense.
 
Originally Posted By: Shannow
Originally Posted By: SilverC6
We can all wear shoes 5 sizes to big but why not get it right.


Poor analogy...

Syntec 0W20 has the same viscosity at 25C as the 0W40 has at 40C, and same viscosity at 80C ans the 0W40 has at 100C.

Nothing like "5 sizes"


Really.

So on heavy in heavy slow moving traffic when the oil really heats up he's getting a bit of a buffer before it thins out similar to the spec grade.
Sounds like a win to me.

5 sizes too big. What a stupid analogy.
 
Originally Posted By: Doug Hillary
You're correct - I no longer wonder why people leave and never return.........sad that!

I must say that we in North America must look exceedingly odd at times to the rest of the world. We have the opportunity to get something like a Castrol 0w-40 at a remarkable price by anyone's standards, yet the hand-wringing that follows about it being an inappropriate viscosity (only in North America and perhaps Japan) and how much "extra" fuel it will burn (in North America, where the fuel prices are the envy of the world) would have us think there was an impending disaster.
 
Engines in the US will spec 1 weight most likely due to fuel efficiency. Meanwhile that same engine anywhere else in the world can spec 1-2 weights higher.
 
Originally Posted By: Garak
Originally Posted By: Doug Hillary
You're correct - I no longer wonder why people leave and never return.........sad that!

I must say that we in North America must look exceedingly odd at times to the rest of the world. We have the opportunity to get something like a Castrol 0w-40 at a remarkable price by anyone's standards, yet the hand-wringing that follows about it being an inappropriate viscosity (only in North America and perhaps Japan) and how much "extra" fuel it will burn (in North America, where the fuel prices are the envy of the world) would have us think there was an impending disaster.



very true, Garak. Almost every civic and Corolla regardless of age is running on some type of 20w50 in Central America and they are doing just fine. My friend in El Salvador has a 2001 Civic with 250k miles on it and he has ran 20w50 in it since it was imported from the US as a totaled car at 110k miles.

OP ignore the it will kill your gas mileage by 5mpg stuff, its bologna. My friends Civic gets awesome gas mileage on 20w50 dino that is way thicker than that premium 0w40 synthetic. Sure you may take a small hit in MPG but not enough to matter.
 
Last edited:
Originally Posted By: donnyj08
OP ignore the it will kill your gas mileage by 5mpg stuff, its bologna. My friends Civic gets awesome gas mileage on 20w50 dino that is way thicker than that premium 0w40 synthetic. Sure you may take a small hit in MPG but not enough to matter.
\

I think you're right. Fuel economy loss going from a 20 oil to a 40 oil (hot visc) are in the neighborhood of from 2% to 6%, which translates to about 1/2 mpg to 2 mpg. (The 5mpg talk was like 18%, so bogus overblown.) The actual range of fuel economy loss depends on friction modifiers and cold weather driving habits, short trips etc.

See http://www.truckinginfo.com/article/stor...el-economy.aspx for differences due to viscosity alone, ...............
and
http://pceo.com/ViscosityModifierPart3.html for FM differences.

"Depending on whether OFM or MFM are used, and depending on operating characteristics, one can achieve fuel efficiencies of 1 to 4 percent through the use of engine oil formulations and friction modifiers. Extensive work by Lubrizol has shown that OFM can be as effective or in some cases more effective than MFM."
 
Well the motorcycle certainly wouldn't like it since it has a wet clutch. It would cause slipping. I run rotella t6 5w40 in that and it does just fine. Might try the regular 15w40 next time. Civic has 152k on it so I doubt a 40 weight oil would make a big difference when it originally wanted 5w30. Well see at next oil change though.
 
Status
Not open for further replies.
Back
Top Bottom