Oil Change

[shift_down]

you need to use a 0w oil or a 5w oil. The first number in the sequenxe of XwXX is the startup viscosity. It represents how thick the oil will be upon startup. The lower the number, the better. The second number in the sequence of XwXX is the viscosity at operating tempearture. A 30 weight oil will be a viscosity of 10cs at operating temps, this is an ideal viscosity. My suggestion is use a 0w30 synthetic oil.

If you dont go synthetic, then use a 5w30 mineral oil. the 5 means your startup viscosity will be better than a higher number, but will have enough additives to last you until your next oil change (3k-5k miles).

People that tell you to use a 10wXX oil do not know what they are talking about, they are just going off of hear-say. You need the first number to be as low as possible, preferably a 0w.

[dawagarage]

Originally Posted by shift_down

you need to use a 0w oil or a 5w oil. The first number in the sequenxe of XwXX is the startup viscosity. It represents how thick the oil will be upon startup. The lower the number, the better. The second number in the sequence of XwXX is the viscosity at operating tempearture. A 30 weight oil will be a viscosity of 10cs at operating temps, this is an ideal viscosity. My suggestion is use a 0w30 synthetic oil.

If you dont go synthetic, then use a 5w30 mineral oil. the 5 means your startup viscosity will be better than a higher number, but will have enough additives to last you until your next oil change (3k-5k miles).

People that tell you to use a 10wXX oil do not know what they are talking about, they are just going off of hear-say. You need the first number to be as low as possible, preferably a 0w.

dumb, no.
"the people" you mean the manufacturer???
i.e.-

thats from my 73 datsun 620 fsm but every fsm has that chart.
lower viscousity isnt always better, it depends on the climate zone you are in.

[shift_down]

Originally Posted by hotboiblaze

lower viscousity isnt always better, it depends on the climate zone you are in.

This is true for the SECOND number in the XwXX sequence, not the first number.
If you are in a higher climate condition, or your motor puts out higher temps, i.e. a track car, then you can use a 5w40 or something like that.