Just got 5 qts Valvoline 10w-30 full synthetic with filter for $22 at Autozone last week. Can't beat that by much.

What'* Valvoline rated to?

Doing the full swap to AMSOIL synthetic and filters actually saves money over time since you only change once a year.

Assuming you're not leaking

Not sure of the official rating, I thinkthey stick with "manufacturers recommended internal". Mine lasts 5000 easy though.

A VERY important fact you need to keep in mind with once a year oil changes is this. Dirt. Oil not only lubricates, it cleans. It suspends the soot and carbon. Some is captured in the filter, the rest stays suspended. There comes a point when the filter is plugged, and the oil can no longer suspend and more. You need a clean, sludge free engine to do this.

No. For a jug (4 quarts?).

Most jugs are 5 quarts. Mobil1 is one that is 5 quarts. 4.5 quarts is needed for a change with the filter.

Use the 1036 filter and pour all 5 in.

this is what i use, get them at walmart and a delco filter, jugs are $15-16

That'* why I buy the whole AMSOIL package. Oil and filter. Even though they say it'll work with a regular filter, there'* is like a $1 or so more.

I got hooked on AMSOIL when a race buddy of mine hooked me up with some. His team is sponsored by them and they run it in their race engines. Told me to run it for 15k, then bring it to his shop. We tore the engine apart and the damn thing looked brand new. Proof enough for me.

Love a clean engine.