roadracer516

I am going to switch to Mobil 1 and got this viscosity. Any users (long term preferred) chime in. Thanks in advance

Simon1

I haven't yet, but it's what the engine builder told me to use. Actually he told me to use that viscosity in either Torco, Amsoil or Mobile 1. I will probably get the mobile 1 full synthetic and do an oil analysis when it's done.

xxDerek

I'm going to be doing 0w30 this weekend.

dyerjg

I went the 0w30 mobil one route and am happy with the result.

John

shoeys08dkcandygt

ok. im going to ask a newby question. what is the diff in viscosities?

ensign_lee

5w30 here - you don't live in a cold climate, do you?

roadracer516

Not at all, very warm and dry climate.

Icculus88

yes, along with the newb, how does viscosity translate to oil title again? and also, what oil is effected by the cold weather?

it3vom

Viscosity measures a fluids resistance to flow. The first number represents the viscosity at a cold temp and the second number represents the viscosity at operating temps.

Rubrignitz

10w30 (multi-weight oil) = 10 weight when cold and 30 weight at operating temperature. I personally prefer a 0-5 cold weight, flows better at startup. Being that you're in a mild climate like CA you should be fine.

A multi-weight oil is an oil formulation that acts as if it has two different viscosities, depending on the temperature. At the lower test temperature (40°C), it flows as the first number would indicate, and at the higher test temperature (100°C), it flows as the second number would indicate. This multi-weight nature is made possible by the addition of long-chain polymers to the oil, which are coiled up when cold, but straighten out when hot, and thus change the flow characteristics of the oil. Thus a 10w40 oil will flow like a 10 weight oil when at 40°C (fairly thin), but will not thin out more than a 40 weight oil would when hot (100°C). A 10w60 oil will flow like a 10 weight oil when at 40°C (fairly thin), but will not thin out more than a 60 weight oil would when at 100°C.