Engine Oil and Engine Oil Additive

[Swapnil]

for diesel engines the first link is the newest api rating go in for that. the second link is an older api rating cf4/api sj while the newest is api-ch4(for diesel)/api sn(for petrol)

Okay. Thanks for that. Will get the job done today itself, and quote the price. Going for a 700+ kilometers drive tomorrow

 

[maximus]

I got a polo petrol & during a checkup at 3500 km was advised by the SAC to top up with 1 liter engile oil. VW uses castrol magnatec 5w40 and I have a Shell Helix 5w40. Can i top up with Shell which has same rating.

 

[nickandre]

shell helix ultra is 5w40 and is a synthetic oil, castrol magnetic is a semi-synthetic while castrol magnetic professional is a fully synthetic.

just confirm with vw if its synthetic running in the engine if yes you can add shell 5w40. but its better to not mix brands.

 

[MK777]

Engine oil additives, Do they work??

I gave my car today for servicing at the TATA S.C. for its second free service at 10000kms. Since I purchased an AMC with the car, the engine oil & a few other consumables were provided free. The estimate bill amount was made & I was shocked to see 600 bucks for a bardahl engine oil additive. When enquired he said "Sir, We are using this additive in all the cars now. It gives a better protection to the engine & blah blah blah". So went ahead with it & didnt give any objection to it.

But my query is do these engine oil additives really work?? If yes then is it worth going in for a small car like nano where I can easily get another can of oil for next service by saving the money for the additive??

Thanks.