Type Of Oil Used In Yaris 2001 998Cc

[dragonofcymru]

hi all can anyone help me please I need to change my oil I wanted to use Castrol magnatech it says in my owners manual to use SAE 5W - 30 when I found this particular oil made by Castrol it said it was synthetic one id like to know more about synthetic oils and id like to know can I put this in my car.

if anyone can help me please id be very grateful thank you.

from Dave Horton Croydon

[FROSTYBALLS]

Have a look at: http://www.moss-europe.co.uk/graphics/uk/instructions/MillersClassicEngineOilsFAQs.pdf and http://www.castrol.com/castrol/sectionbodycopy.do?categoryId=9014096&contentId=7073083

I would think either a fully synthetic or semi-synthetic is fine for your car, as long as it is the correct viscosity (ie SAE 5W-30)

[Madasafish]

Toyota use a 5-30W semi synthetic but a fully synthetic is fine - but more costly.

.

[dragonofcymru]

what is a synthetic oil as apposed to normal oil please

[FROSTYBALLS]

'Normal' oil is Mineral oil.

Copied from my first link:

"3. What is the difference between a mineral and synthetic oil?

Both types begin with crude oil. Mineral oil is obtained directly from the refining process, whereas synthetic oils are subjected to chemical processing which alters and improves its chemical structure. Synthetic oils therefore have better performance than mineral oils at higher and lower temperatures, but are inherently more expensive."

[FROSTYBALLS]

Slightly more detailed information is included at http://en.wikipedia.org/wiki/Motor_oil

[Madasafish]

Non synthetic oils - crudely - are for technically unsophisticated cars and unsuitable for almost any engine made post 1990..

Good for lawnmowers though :-)