Engine oil

[Jbkumara]

Hi

Am using shell 10w40 synthtic engine oil  for my hijet buddy van.

What if i use 10w 30 insted of 10w 40

Is it okey ?

[ramishkad]

10 hours ago, Jbkumara said:

Hi

Am using shell 10w40 synthtic engine oil  for my hijet buddy van.

What if i use 10w 30 insted of 10w 40

Is it okey ?

What is the oil recommended in  your manual? No matter what the basses in service stations say, always only use the oil with the viscosity specified in the service manual.

[Twin Turbo]

A  controversial sub,

engine oils' have many viscosities as there are  openions.

Take into account  .the recommend oil for our operating conditions.  

TT.

Edited April 18, 2017 by Twin Turbo

[Crosswind]

@Jbkumara if your user manual specifies 10W30 is the recommended viscosity, then that's the one that gives optimal performance. But the important point to note is you may need a higher viscosity oil as the engine becomes older. How many kilometers has your van done (if you don't know the genuine number, make a guess).

The only 'difference' in opinion about engine oils we had in this forum was from a person who had confused engineering with economics and patriotism. However, even his opinion did not address viscosity but frequency of oil change.,

 

[The Stig]

As ramishka and crosswind have said stick to the manufacturer recommended viscosity. Unless you feel that the engine is burning oil and the oil level is dropping, in which case use a slightly higher viscosity oil.