Landracing Forum

Tech Information => Technical Discussion => Topic started by: jdincau on April 06, 2019, 03:50:11 PM

Title: Motor oil
Post by: jdincau on April 06, 2019, 03:50:11 PM

I can't find anything in the archives about this subject. I can't believe we haven't beat this horse before.

What oil are you running in your 4 stroke, water cooled, normally aspirated, automobile engine on gasoline?

Title: Re: Motor oil
Post by: BSTER on April 06, 2019, 04:31:19 PM

Schaeffers 20-50 racing oil

Title: Re: Motor oil
Post by: Happy Pappy on April 06, 2019, 05:35:47 PM

 4 Gals. of 30wt. Red Line Racing


Chris

Title: Re: Motor oil
Post by: Seldom Seen Slim on April 06, 2019, 06:00:03 PM

I'll ask for a clarification.  What do you want - our grocery-getters or our race vehicles?

Title: Re: Motor oil
Post by: jdincau on April 06, 2019, 07:21:54 PM

Sorry, race car.

Title: Re: Motor oil
Post by: ronnieroadster on April 06, 2019, 07:33:10 PM

On my old motor I find Valvoline VR-1 20/50 works best but the mileage I get between oil changes really sucks for some reason.   :cheers:

Title: Re: Motor oil
Post by: Stainless1 on April 06, 2019, 10:14:32 PM

BG Shearpower 15-40 full synthetic... it is usually a diesel oil, but it is great for the Hayabusa....

Title: Re: Motor oil
Post by: Jack Gifford on April 06, 2019, 11:44:21 PM

Old school all-aluminum blown alky DOHC hemi four, large clearances (.004"-.005" both rods and mains)- 10 qt. #40 PennGrade1.

Oops- I see that you asked about naturally aspirated engines. Sorry.

Title: Re: Motor oil
Post by: n49racer on April 07, 2019, 09:31:32 AM

430 inch BBC. .003 bearing clearance. 15/40 Shell Rotella

Ted

Title: Re: Motor oil
Post by: manta22 on April 07, 2019, 08:39:01 PM

383 Donovan SBC aluminum block.  Mobil 1 synthetic.

Regards, Neil  Tucson, AZ

Title: Re: Motor oil
Post by: Beef Stew on April 07, 2019, 11:24:08 PM

I used Chevron Delo (10-50?) in my small block in the 1960s. I ran at AHRA, NHRA and SCTA events, from 1/4 to 1.5 miles. I turned as much as 9,000 rpm at the drags and never had a problem. BTW I also ran Delo on the street  8-)

Title: Re: Motor oil
Post by: jacksoni on April 08, 2019, 08:26:46 AM

Royal Purple XPR 5W-30. shifting at 10200, 9500 in the lights.

Title: Re: Motor oil
Post by: jjolly on April 09, 2019, 09:03:33 PM

358 Ford NA 8500 rpm. 15/50 mobile 1.  22.88 a gallon at Walmart.