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**D.PASSMORE** · 03-25-2014, 02:36 PM

You motor should be able to run on the gas fuel that is on the market today - what octane is determined by how your motor is set up (built). To me, lead additive is not a solution for a fix or more Horse power or longer motor life.

This is how I run my 72 SBC, mild build - 355:

I run Shell or BP 89 octane (ethanol) one tank, then one tank of 89 octane(non-ethanol) - vise-verse.

Change the plugs every 6k / Champion RV19YC / gap .045. You can see the corn crud on plugs!

Change oil every 3 to 4K, Rotella synthetic blend, 10w-30w / add a small bottle of zddp oil additive.

Run a can of sea foam fuel cleaner through a full tank of gas (18gal) every oil change.

That is my routine, hope it helps.

03-25-2014, 02:36 PM	#5
D.PASSMORE One of the First Join Date: Jan 2000 Location: St. Augustine,FL. Posts: 4,060	Re: best fuel for our trucks? You motor should be able to run on the gas fuel that is on the market today - what octane is determined by how your motor is set up (built). To me, lead additive is not a solution for a fix or more Horse power or longer motor life. This is how I run my 72 SBC, mild build - 355: I run Shell or BP 89 octane (ethanol) one tank, then one tank of 89 octane(non-ethanol) - vise-verse. Change the plugs every 6k / Champion RV19YC / gap .045. You can see the corn crud on plugs! Change oil every 3 to 4K, Rotella synthetic blend, 10w-30w / add a small bottle of zddp oil additive. Run a can of sea foam fuel cleaner through a full tank of gas (18gal) every oil change. That is my routine, hope it helps. __________________ DAVID PASSMORE ST AUGUSTINE ,FL ZIP 32084 '71 SWB K/10 CUSTOM DELUXE (Chili) '72 BLAZER K/5 Muscle Truck (Mule) '72 LWB K/20 CHEYENNE (Blackie) Last edited by D.PASSMORE; 03-27-2014 at 03:11 PM.