The Ford Barn

corvette8n · 04-11-2024, 01:55 PM

I could see the blue smoke in my rear view mirror. I’m currently running 20-50 racing oil. Compression is 60lbs for all 8 cylinders, this motor is tired. Should I switch to straight 40 or 50wt oil to get me through car show season? I will either get this motor rebuilt during winter or my other 90% complete one rebuilt.

TJ · 04-11-2024, 06:59 PM

Straight 40 wt. might help. Your are definitely ready for a rebuild. I've been there and done that with a '38 and burned a quart every 60 miles.

cas3 · 04-11-2024, 10:35 PM

I would just drive the heck out of it. Who knows, it may improve. Some marvels magic oil mixed in may even loosen up some stuck rings. drive it, it can't get worse!

GB SISSON · 04-12-2024, 12:01 AM

And if it's plum wore out and Skip's spirited driving advice doesn't help, then I might suggest running a cocktail of equal amounts of GL4 90wt, STP (high mileage), John Deere Cornhead grease and Crisco. If the motor lasts into the fall, substitute a couple bottles of wesson oil for the crisco.

cadillac512 · 04-12-2024, 07:19 AM

Quote:

Originally Posted by gb sisson

and if it's plum wore out and skip's spirited driving advice doesn't help, then i might suggest running a cocktail of equal amounts of gl4 90wt, stp (high mileage), john deere cornhead grease and crisco. If the motor lasts into the fall, substitute a couple bottles of wesson oil for the crisco.

I think Gary may be sampling his still. LOL!

pistonbroke · 04-12-2024, 07:53 AM

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Gary , Where were you with that advice two years ago when I was bombin around Olympia with my seven cylinder low to no compression 8ba. Instead of smelling burnt oil I would have smelled like any greasy spoon diner. LOL Tim

GB SISSON · 04-12-2024, 08:35 AM

Quote:

Originally Posted by cadillac512

I think Gary may be sampling his still. LOL!

Nope... Left all that stuff behind on Aug 22, 2022. Never looked back, so I'll need to conjure up some other excuse. And Tim, the cooking grease helps cover the smell of burnt 90W. The main drawback to this 'cocktail' is that you need to have the engine running, fold in the new ingredients slowly while draining the old oil, then leave the engine running 24/7 or you'll never get it started again.

But seriously folks, in fairness to the OP, I would go with straight 50 wt from the cheapest source possible and a can of STP wouldn't hurt..

cadillac512 · 04-12-2024, 01:03 PM

If the OP goes with Gary's earlier cocktail I sure hope I'm not the one to get the rebuild job.

rich b · 04-12-2024, 01:21 PM

Don't they still sell that "ring job in a can" stuff down at Western Auto.

04-11-2024, 01:55 PM	#1
corvette8n Senior Member Join Date: Jul 2010 Location: 36 miles north of Albany NY Posts: 2,954	Drove 30mi round trip burned 1qt oil I could see the blue smoke in my rear view mirror. I’m currently running 20-50 racing oil. Compression is 60lbs for all 8 cylinders, this motor is tired. Should I switch to straight 40 or 50wt oil to get me through car show season? I will either get this motor rebuilt during winter or my other 90% complete one rebuilt.

04-11-2024, 06:59 PM	#2
TJ Senior Member Join Date: May 2010 Location: Napa,California Posts: 6,040	Re: Drove 30mi round trip burned 1qt oil Straight 40 wt. might help. Your are definitely ready for a rebuild. I've been there and done that with a '38 and burned a quart every 60 miles.

04-11-2024, 10:35 PM	#3
cas3 Senior Member Join Date: Jan 2011 Location: sw minnesota Posts: 4,578	Re: Drove 30mi round trip burned 1qt oil I would just drive the heck out of it. Who knows, it may improve. Some marvels magic oil mixed in may even loosen up some stuck rings. drive it, it can't get worse!

04-12-2024, 12:01 AM	#4
GB SISSON Senior Member Join Date: Jan 2014 Location: Orcas Island Washington Posts: 4,955	Re: Drove 30mi round trip burned 1qt oil And if it's plum wore out and Skip's spirited driving advice doesn't help, then I might suggest running a cocktail of equal amounts of GL4 90wt, STP (high mileage), John Deere Cornhead grease and Crisco. If the motor lasts into the fall, substitute a couple bottles of wesson oil for the crisco. __________________ Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1947 Tonner Pickup (red) mostly stock with exception of a cummins 6at turbo diesel, 1946 Tonner Pickup (green) with 226 cu in 6 cyl flathead, 1979 Toyota landcruiser wagon, completely encased in 1947 Ford Jailbar sheet metal. Ok, cornbinder rear fenders..... 'Rusty ol' floorboards, hot on their feet' (Alan Jackson)

04-12-2024, 07:53 AM	#6
pistonbroke Senior Member Join Date: Feb 2021 Location: Perry Mo. Posts: 488	Re: Drove 30mi round trip burned 1qt oil Sponsored Links (Register now to hide all advertisements) Gary , Where were you with that advice two years ago when I was bombin around Olympia with my seven cylinder low to no compression 8ba. Instead of smelling burnt oil I would have smelled like any greasy spoon diner. LOL Tim

04-12-2024, 01:03 PM	#8
cadillac512 Senior Member Join Date: Apr 2019 Location: Kansas Posts: 926	Re: Drove 30mi round trip burned 1qt oil If the OP goes with Gary's earlier cocktail I sure hope I'm not the one to get the rebuild job. __________________ "It don't take but country smarts to solve the problem" (Smokey Yunick) '41 Merc Town Sedan / 260" 8CM engine '66 Fairlane four door / "warmed up" 302

04-12-2024, 01:21 PM	#9
rich b Senior Member Join Date: May 2010 Location: Minnesota Posts: 1,827	Re: Drove 30mi round trip burned 1qt oil Don't they still sell that "ring job in a can" stuff down at Western Auto.