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There is a reason behind why manufacturers' recommend oil change based on time interval. It is not a scam. Oil in engine is not sealed. It comes in contact with atmospheric air on an average 2000 times every minute while running and will be exposed to air even while stationery. Oil deteriorates when exposed to atmospheric air as well as water contained in it.

I agree there is a shelf life for everything. I checked with Chevron India and also consulted many others.

The oil will get spoilt if it comes in contact with moisture. As long as you keep it moisture free, you can store it for over a year.

Now, in my case, I've two trucks that take 6 and 6.5 ltrs of oil at every service. I picked up 3 buckets of Delo 400 of 15 ltrs each. Practically, a bucket is emptied at every service. The balance 2.5 ltrs is brought back in the same bucket that is airtight and kept. Both the trucks go in for service at every 7.5K kms. Currently have 2 sealed buckets lying with me. No worries..:)

Maybe the higher detergent levels in a product ( crb turbo API-CH4) meant for heavy load diesel engines, is not good for our smaller motors.
I feel the Valvoline CF4 all climate diesel used with ABRO premium oil treatment fared better in my Indigo TC as the engine felt smoother almost throughout the drain interval. according to my observation, on putting the crb turbo , FE improved quite immediately , but the engine felt a little less smoother as km piled on. I had earlier experienced the same IN my NA india with MOBIL delvac MX.
Maybe it best to stick with a API -CF4 ( 15W-40 ) which is compatible with Turbo charged diesel motors fitted with EGR.
But the telco recommended GTD is really is poor IMO , the HP MIlcy seems better oil.

I don't think this logic carries any weight for the simple reason that when we switch from Mineral to Synthetic then we would have to experience roughness in the engine as synthetic has more detergent than mineral. That is not the case as we find engines much smoother on synthetic than mineral oils.

Currently I am using Mobil Delvac MX for last 12000 kms changed once already after 10000 kms and now I find my engine butter smooth.

TSK1979 did you get a chance to try Castrol CRB Turbo if yes is it in your Safari or Indica ?


Thanks for explanation guys.

I guess you have a butter smooth motor to begin with :). Mine is slightly more agricultural as compared to the QJD.
I can procure the Mobil delvac at lesser cost than the CRB turbo. I ought to stick to the exxon product i guess.
SO for a TC Indigo , Mobil Delvac MX (15W-40) API- CI4 or SHELL HELIX HX6 -API-CH4 Or Castrol CRB Turbo - ch4 or Valvoline/ HP Milcy CH4 ?

Hi has anyone here tried Valvoline All climate diesel here over a period of time ?

Lubricants ::Valvoline Cummins::

a 5 lit pack ( 4 + 1 LIT EXTRA ) is available for Rs.800/- ( Rs.848 MRP ).
Not a bad idea to stock a couple of cans if one changes oil at 5000km interval or 6 months instead of the telco specified.

i guess its one of the cheapest oil . even the Servo API- CF4 costs more than this.
is there a catch ?

Shell Helix Diesel HX6 - INDIA

This Shell Helix HX6 API-CH4 (15W-40) exceeds the API -CF4+ Requirement for my indigo diesel.
Now the above product info page mentions that the oil is suitable for turbocharged and DI intercooled engine.
My question is an oil suitable for turbocharged DI intercooled engine good enough for a turbocharged IDI engine ?
Very confusing ....

Also a query - Acording to the indigo TC engine manual - engine oil quantity for the 475 IDI is 5.5 lit.
Yet in reality with only 5 lit. the oil level on dip stick exceed the max level mark.

So actually how much oil is really needed ?

Is Tata is fooling customers at the TASS by charging for say 600 ml of oil which is never put ?

have just used mobil 1 for my 3rd service of my safari and there is a discernible difference in the way the engine is now behaving. it is DEFINITELY quieter and the vibrations filtering through into the cabin are on a scale of 1 to 10 at a 2 now.

it is really pricey as an oil (6400 for 8 litres) outside but the dealerships / service stations are a huge rip off at 9600 for 8 litres! but with the sort of driving we have been putting the safari through, my gut feeling is that it is worth the investment.. will update in a couple of months as to what the engine is REALLY doing ;)

500ml from the last oil change got left inside.

@btb: For the Safari 2.2, try sourcing the Mobil Delvac 1.

guys any idea which engine oil will best suit linea mjd?

Any idea how you drain off the entire oil ?

The best way is to drain oil when the engine has achieved its optimum running tempreature and wait for atleast 15mins before pouring out the oil as all the oil in the pistons,.. parts needs to be settled down.