OW-40 or 5W-30

**hytan** · December 14th, 2004 05:43 PM

Which of the two engine oil rating has the best protection under Philippine road condition?

Both will be Fully Synthetic in nature...

**mazdamazda** · December 14th, 2004 05:49 PM

depends on your engine. check your user's manual for the optimal oil weight to be used in your car.

for example, the the rav4 1.8L 1zz-fe engine's optimal oil is a 5w-30. while the rav4 2.0L 1az-fe engine's optimal oil is 10w-40.

to determine your the optimal oil, check which oil has the broadest / widest coverage of temperatures. though you can safely rule off temperatures of below 0 deg C here in our country.

**BlueBimmer** · December 14th, 2004 05:55 PM

i'd go for 5w30 or 10w50 if available. mainit dito kaya di syado recommended low viscosity oil afaik.

**hytan** · December 14th, 2004 05:58 PM

Mazdamazda, My ride is an altis 1.6 3zz-fe. Im planning to get Mobil1 Supersyn 0w-40 or Castrol Syntec 5w-30. Dont know which of the two is better. Both will be Fully Synthetic in nature.

Which will you choose?

**jackaroo** · December 14th, 2004 07:17 PM

Aside from what was mentioned above, you can ask what the toyota dealers use for synthetic oil. Think the toyota synth oil is a 5w40.
My suggestion is to use a 5w40 or 5w50 or 10w30 full synth. Don't think castrol Syntec is a true "full synth" oil based on comments from the oil forums.

**speedyfix** · December 28th, 2004 10:01 AM

mobil 1 0w-40 is excellent oil!

2 thumbs up!

**mazdamazda** · December 28th, 2004 10:05 AM

Originally Posted by hytan

Mazdamazda, My ride is an altis 1.6 3zz-fe. Im planning to get Mobil1 Supersyn 0w-40 or Castrol Syntec 5w-30. Dont know which of the two is better. Both will be Fully Synthetic in nature.

Which will you choose?

5w-30 a full synthetic? better check it out... it might be a semi-synth only.

if you want better gas consumption - i'd go with the 5w-30. i think that the zz series engine is designed to handle 5w-30 (unlike the az series).

but if you plan on keeping your ride for a LONG time, go with the mobil1 0w-40 (what am using right now). toyota shaw-ortigas uses that kind of full-synth oil.

**hytan** · December 28th, 2004 12:19 PM

I'll be using Mobil1 sa ZZ engine ko. Mas may tiwala ako kay Mobil1 0W-40 rather than Havoline Energy 5W-30 because im planning to use my car a long time.