ARTICLE: Synthetic oil vs Mineral oil

[Shakensoul]

OK, I spoke with the Motul guy in Delhi and got a quote for Motul synthetic oil.

8100 X-CESS 5W40

Approx 3700 (5L) for old stock, 4200(5L) for new stock, imported from France and only available in 5 liter cans for consumers.

So which one do I go for, Motul or Mobil1 ?

[Eddy]

Originally Posted by nitrous

That was not for experts.
I was referring to people like me, who would prefer a mechanic to replace the oil and the filter

[nitrous]

Originally Posted by Shakensoul

OK, I spoke with the Motul guy in Delhi and got a quote for Motul synthetic oil.

8100 X-CESS 5W40

Approx 3700 (5L) for old stock, 4200(5L) for new stock, imported from France and only available in 5 liter cans for consumers.

So which one do I go for, Motul or Mobil1 ?

U'd rather get a 4L can of Mobil1 5W50 for lesser.

[sriturl]

Originally Posted by tsk1979

alpha1, you have it other way round.
15w40 will retain viscosity more than 15W30
So if manufacturer says 15W30, you can go for 15W40, not the opposite

Excuse my repetition. but a similar question.
So, if my manufacturer recommends 15W40, I can put 5W40 ?
My understanding is 5W40 will hold good till 5deg Cent as opposed to 15W40 retaining upto 15deg Cent.

Am I right?

[tsk1979]

Yes you can put in 5W40, it will give you better low temperature protection than 15W40, however since minimum temperature in bangalore rarely goes below 10, 5W40 is an overkill.

[nitrous]

[quote=tsk in bangalore rarely goes below 10, 5W40 is an overkill.[/QUOTE]
True. 15W and 10W are better for our weather.
But, we don't get synthetic in these grades.
And the regular 5W have always worked fine.

[sriturl]

Originally Posted by nitrous

True. 15W and 10W are better for our weather.
But, we don't get synthetic in these grades.
And the regular 5W have always worked fine.

Thanks guys...
That was more of a academically inclined question.

I am not yet ready to shift to Synthetic. I am at around 8K due for oil change at 10K for Swift D
Is Shell Helix fine? or any better brand?

[nitrous]

For the SwiftD, get API-CI4 standard oil.

[sriturl]

Originally Posted by nitrous

For the SwiftD, get API-CI4 standard oil.

Is that Maruti GA? Or where can I get it?

[nitrous]

Maruti uses API-CH4 mobil oil for the diesel swift. You can go ahead with that.

[Eddy]

Is AP CI4 better or AP CF4 ?

[simply_sunny001]

Originally Posted by Eddy

Is AP CI4 better or AP CF4 ?

I believe you meant CH4 not CF4 as i never heard of any oil available in india beyond CI 4

And yes CI 4 is better than CH 4.

Mobil Delvac MX/Chevron Delo 400 are the ones if you looking for CI 4.

[tsk1979]

API-CF4 exists, and thats what Castrol GTD etc., and most sasta engine oils in market meet.,
This would be good enough for older indica's(non DICOR) etc., Infact older indica requires API-CD, a prehistoric specification.
For current common rail engines, you either put API-CH4 or API-CI4
API-CI4 is Superior to API-CH4, but not by a huge margin.
API-CI4 will be more beneficial as it will compensate for the lack of lubrication of diesel(due to sulfur removed) better than API-CH4
Infact if we go ULSD, then API-CI4 or API-CJ4 will be the only oils you would be able to use.
In the current scenario API-CH4 is okay

In case of TASS, they use 2 oils mostly
Castrol GTx Diesel - API-CI4
And Mobil TM1000 - API-CH4
The Latter is more popular(for some reason I don't know)

[rb2399]

Originally Posted by simply_sunny001

I believe you meant CH4 not CF4 as i never heard of any oil available in india beyond CI 4

And yes CI 4 is better than CH 4.

Mobil Delvac MX/Chevron Delo 400 are the ones if you looking for CI 4.

Delo 400 is API CI-4 Plus and not API CI-4

[sriturl]

Originally Posted by tsk1979

API-CF4 exists, and thats what Castrol GTD etc., and most sasta engine oils in market meet.,
.
.
In case of TASS, they use 2 oils mostly
Castrol GTx Diesel - API-CI4
And Mobil TM1000 - API-CH4
The Latter is more popular(for some reason I don't know)

thanks guys... but you just confused me more
I only learnt about 5W40, 15W40 etc kind of specifications.
What does API-C... kind of specs mean?
I just understood that for 10K change, I dont need to go for synthetic, so mineral might just be fine. but the std oil which M.A.SS put for 1K change, is causing some roughness from around 6K.
I asked A.S.S folks, and they have Maruti OEM(didnt give me name of it) and Castrol.

So, Castrol GTx Diesel is a good one? or should I buy something like Shell helix and ask them to change that oil?