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#1 |
Registered User
Join Date: Aug 2018
Location: portland or
Posts: 39
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Oil confusion, please help!
Hey all, I recently got a ‘69 long step, from the forest service up in wahington.
I will try to post photos later, but onto my question. in it, is it’s factory 292 with the granny 4speed. I want to do an oil change and shang the sparks, but i’m confused on what oil to use. I’m seeing so many different claims saying you need this additive or that additive. I’m in oregon and the temperature is getting down to the low 50s. If anyone has a solid answer it would be greatly appreciated. Thanks! |
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#2 |
Senior Member
![]() Join Date: May 2017
Location: Dowagiac Michigan
Posts: 202
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Re: Oil confusion, please help!
Here in Michigan I've always run 10w40 conventional oil
In my flat tappet cam engines The article below is a good read on oil difference Engine Oil Testing Results | The De Tomaso Forums https://pantera.infopop.cc/topic/eng...esting-results |
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#3 |
Registered User
Join Date: Jul 2019
Location: Beebe, AR
Posts: 2,458
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Re: Oil confusion, please help!
I did the same as you back in May when I got my 67 with 283. After much reading and consideration I went and grabbed up five quarts of the Valvoline VR1 conventional racing oil. Looked at the Lucas additive as I am a big Lucas fan but decided to just go with a good oil that I did not have concerns using.
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#4 |
Senior Member
![]() Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,253
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Re: Oil confusion, please help!
I run SAE 30 weight in my 292s.
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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#5 | ||
"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,936
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Re: Oil confusion, please help!
Any 10w30 will do. You can also add zinc additive (ZDDP).
I live up in the northwest corner of WA State and I use 10w30 in all my older rigs. Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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#6 |
Senior Member
![]() Join Date: Mar 2012
Location: Chesapeake, Va
Posts: 1,275
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Re: Oil confusion, please help!
for my flat tappet cammed engine I run Rotella conventional 10-30w
always hear it still had a zinc content .But I do not know for sure just never had any issues
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Mike 72 C-10 Cheyenne off frame resto and Upgraded to 4 wheel disk, Tilt, Dakota Digital Dash / Rear slider. 421 SBC / TH350 3000RPM Stall Progression Ignition /Holley 750 DP/3:73 gear Eaton Limited Slip unit / 2 1/2 exhaust glasspacks ![]() |
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#7 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,097
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Re: Oil confusion, please help!
Howdy neighbor.
I run Royal Purple HPS 10/30 in my daily driver Burban. High zinc so no additional additives needed. I usually get it through Jegs or Summit, but it is available locally through Baxter Auto parts. And its on sale now. See below. https://www.summitracing.com/parts/r...yABEgKWn_D_BwE
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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#8 |
Registered User
Join Date: May 2016
Location: Henderson NC
Posts: 975
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Re: Oil confusion, please help!
Rotella took the zinc out a few years ago.
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#9 |
Senior Member
![]() Join Date: Mar 2019
Location: Somonauk IL
Posts: 324
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Re: Oil confusion, please help!
you have to be careful and do research on your engine components. Oil's have changed, I just checked my dipstick and it was full of metal. Unknow to me, the cam I have is a flat tappet and was using just conventional 10w30 and the oil is nasty and dirty after not even 200 miles. Just bought hi zink Lucas Hot rod oil and hopefully the 327 will like it better. Hope the Cam isn't too worn down.
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#10 |
Registered User
Join Date: Aug 2009
Location: Alden NY
Posts: 2,705
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Re: Oil confusion, please help!
Brad Penn Penn Grade - you can buy it from Summit if it is not available in your area. Only oil I will use in classic flat tappet engines.
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1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7 |
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#11 | |
Moderator
![]() Join Date: Jun 2017
Location: Cherryville, NC
Posts: 2,191
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Re: Oil confusion, please help!
Quote:
Flat cammed engines NEED an oil with high levels of Zinc or a Zinc based additive like ZDDP....As your engine runs, it generates heat and friction, especially at high-stress points like the cams, valves, and tappets, where metal-to-metal contact pressures can be extreme. As this heat and friction builds, the ZDDP breaks down into its chemical components, coating the metal with what's called a tribofilm and taking the brunt of the load. This film forms at the atomic scale, helping to protect the metal in your engine, and reacts in a "smart" way, increasing the protection as the friction and pressure increases. By reducing direct metal-to-metal contact, the ZDDP provides a replenishable wear surface that prolongs the life of your engine. Studies of ZDDP have shown that it effectively provides a cushioning effect on the underlying metal, distributing the force upon it and, accordingly, the wear. Amazon has it as an additive...or you can buy Oils with ZDDP in the mix... Dont use ZDDP in oil that is destined for any engine with a Cat in the exhaust system...Zinc Kills Cats...thats why the oil companies dropped it out...
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Family and country before all others... 2006 Chevy Silverado (Daily Driver) 2012 Chevy Equinox ![]() ![]() ![]() Last edited by AussieinNC; 09-12-2019 at 04:30 PM. |
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#12 |
Senior Member
![]() Join Date: Mar 2019
Location: Somonauk IL
Posts: 324
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Re: Oil confusion, please help!
Good Info AussieinNC. What do I do from here? Keep running with zinc oil and hope it last, or suck it up and do a rebuild?
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#13 |
Senior Member
![]() Join Date: Mar 2012
Location: Chesapeake, Va
Posts: 1,275
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Re: Oil confusion, please help!
That is not good.... do u have some documentation to support ? I might have to swap to royal purple
__________________
Mike 72 C-10 Cheyenne off frame resto and Upgraded to 4 wheel disk, Tilt, Dakota Digital Dash / Rear slider. 421 SBC / TH350 3000RPM Stall Progression Ignition /Holley 750 DP/3:73 gear Eaton Limited Slip unit / 2 1/2 exhaust glasspacks ![]() |
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#14 | ||||
"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,936
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Re: Oil confusion, please help!
Quote:
Quote:
Gary
__________________
'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
Quote:
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#15 | |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,097
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Re: Oil confusion, please help!
Quote:
Here are some links if your interested. https://www.speed-talk.com/forum/viewtopic.php?t=28365 https://pantera.infopop.cc/topic/eng...esting-results https://www.bobistheoilguy.com
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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#16 | |
Moderator
![]() Join Date: Jun 2017
Location: Cherryville, NC
Posts: 2,191
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Re: Oil confusion, please help!
Quote:
If you decide to build a new one, suggest you source a VORTEC 350 roller engine core and start from there.... Depending on intended use, you could use the stock heads or maybe go with some aftermarket...depends on budget.... There are plenty of 350 Vortecs out there in wrecking yards...just watch out for cracked heads... ![]() ![]() ![]()
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Family and country before all others... 2006 Chevy Silverado (Daily Driver) 2012 Chevy Equinox ![]() ![]() ![]() |
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#17 |
Senior Member
![]() Join Date: Mar 2019
Location: Somonauk IL
Posts: 324
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Re: Oil confusion, please help!
Its funny you mentioned a 350 vortec build. I've got 010 350 block and a pair of Vortec heads at the machine shop getting worked on. Still going to use a flat tappet cam due to the block but I know now use the correct oil.
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#18 |
Guest
Posts: n/a
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Re: Oil confusion, please help!
Lucas 15W-40 dino oil with ZDDplus for my K10, Jimmy and 69' FJ40
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#19 | |
Moderator
![]() Join Date: Jun 2017
Location: Cherryville, NC
Posts: 2,191
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Re: Oil confusion, please help!
Quote:
Just my ten cents worth ![]() ![]() ![]()
__________________
Family and country before all others... 2006 Chevy Silverado (Daily Driver) 2012 Chevy Equinox ![]() ![]() ![]() |
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1969, 292, 292ci, chevy |
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