Tugz_S2K

Not for an F20C but for a B16A.

I picked up a 2000 Civic SiR(Si in the US) with B16A engine. This is my daily driver. It has 70,000miles and runs new. Im sure the engine has always run on dino oil because its been dealer serviced all its life. What you reccomend for oil? Maybe RR can give me his 2 cents.

My two choices is to go Amsoil Full Synthetic 5W30 or
stay with dino oil and go with Valvoline Max Life 5W30.

Out of the two, which would you do? Keep in mind the mileage of the engine, it runs like new, lots of power, no oil consumption, all hwy miles.
Driving Habit: 80%hwy, redline 2-3 times a day....Vtec whenever I can

Thanks

Bigsalgt

Non-synthetic oils tend to fill the groves and scratch's that are in the cylinder walls of higher mileage engines, synthetic oils tend not to. This is because synthetic oils have a much higher lubrication rate and its chemical makeup also allows it to do this. I would run a solid non-synthetic motor oil of 10w-30 weight for the summer and 5w-30 weight for the winter. I wouldn't bother with synthetic unless the car had under 50k or after break in. Hope this helps and realize this is IMO!

xviper

Moving to Car Talk.

RZFD

I run 10w-30 Mobil 1 on my '99 Si 91K miles. Redlined daily, occasional fun with nitrous.

mikecl713

LE

RACER

go with the full syn oil. You said the motor runs like new, as in it doesn't burn oil. I had a Del Sol with the B16A3 engine that I picked up with 54k miles on it. I switched to Valvoline full syn 5w-30 right away. I put over 100k hard miles on it before I sold it. The thing is, I never really lost that much oil unless I drove it hard, even then, I didn't lose that much.

The syn oil really helped my B16A3 engine. It had over 150k miles on it when I sold it and it ran like a thoroughbreed race horse Unless the engine uses 1 quart every 800-1k miles, there is absolutly no reason not to use the syn oil.

Tugz_S2K

Sounds good. I will give Amsoil ASL 5W30 a try.
http://www.amsoil.com/products/asl.html

Thanks!

derryck

Can't go wrong with Mobil 1.