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Understanding different oil types

S

sanj71

Silverstone
Joined
16 Oct 2009
Messages
106
Had a shed clear out and have a number of brand new engine oil packs for some reason. Currently use Mobile Super S 10W-40 to top up my 993 engine oil level but have found a Castrol GTX 10W-40 pack which looks like it has exactly the same ratings and specifications. Is it the same oil or am I missing something?

:dont know:
 
sanj71 said:
Had a shed clear out and have a number of brand new engine oil packs for some reason. Currently use Mobile Super S 10W-40 to top up my 993 engine oil level but have found a Castrol GTX 10W-40 pack which looks like it has exactly the same ratings and specifications. Is it the same oil or am I missing something?

:dont know:
Click to expand...

They are basically similar oils. Both are a blend of part-synthetic base oils. Mixing them are not going to generate any major issues, it is however advised to replace the oil completely. Just to make sure that there is not going to be any issues with the compatibility of different oil additive packages what these oils contain.

I have worked in the lubrication industry for seven years now. If you have some other questions regarding to the lubricants, feel free to ask me. :)

Best regards,

Ville
 
Ville,
Thanks for the info. Will only be used as a top up.
:thumbs:

Sanjay
 
A question Ville ....... what is the shelf life of an unopened container of oil ...... does it/will it degrade over say a two to three year period?
 
madalaa said:
A question Ville ....... what is the shelf life of an unopened container of oil ...... does it/will it degrade over say a two to three year period?
Click to expand...

Oil manufacturers suggest a four to five year shelf life for an engine oil. The composition or performance are not affected if stored in stable conditions.

Best regads,

Ville
 
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