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01-03-2014, 02:34 PM
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#1 |
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Registered User
Join Date: Dec 2013
Location: Brunswick GA
Posts: 35
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Best Engine Oil
Hey guys,
My engine is a straight six, 250 with high mileage. No leaks and does not burn any oil that I can detect. What kind of oil should I use for my first oil change as the new owner? Straight 30w? Thanks! |
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01-03-2014, 02:46 PM
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#2 |
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Registered User
 
Join Date: Dec 2012
Location: Chandler AZ
Posts: 1,149
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Re: Best Engine Oil
I like Rotella T from Shell. It is tough to find striaght 30 though. 20-50w would be good if you aren't in a super cold environ ment.
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1970 Longhorn, Front Disc, 350/4 bolt, 882 heads, HEI, Edelbrock, 700R4, HO-52/4.11. 1996 Corvette, Collector Roadster, LT4, 396, 450RWHP, 6sp, 4.11/Dana44/posi 5 point roll bar And let us not grow weary of doing good, for in due season we will reap, if we do not give up. Gal 6:9 |
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01-03-2014, 02:53 PM
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#3 |
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Registered User
Join Date: Mar 2011
Location: spokane washington
Posts: 56
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Re: Best Engine Oil
ive used rotella t with great success in my 292's. right now im using mobil super 5000 10w 30. im really considering going back to rotella t cause at operating temp i get about 25-30 psi idle and rotella was always in the 35-40's. i dont really drive her much during the winter time if i can help it.
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'69 c10 longbed granny 4spd 292 "Behemoth"  '67 c10 longbed granny 4spd 292 "Burzum" some pictures of my work in progresshttp://photobucket.com/zaeea R.I.P. Corey "Flattus Maximus" Smoot 11/3/11 You will be missed. Your sound lives on. |
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01-03-2014, 03:44 PM
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#4 |
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Registered User
Join Date: Apr 2012
Location: Henderson Nevada
Posts: 804
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Re: Best Engine Oil
I use Valvoline VR1 Racing oil SAE30 Motor oil. That's what my machinest told me to use in my 350's. Check it out it has the additives these old engines need.
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1972 cheverolet K5 CST Blazer 350/auto/AC/PS/PB/Aux Batt From Medford, Oregon |
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01-03-2014, 03:49 PM
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#5 | |
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Registered User
Join Date: May 2013
Location: WEST PALM FLORIDA
Posts: 1,174
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Re: Best Engine Oil
Quote:
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68 Long Fleet , ly6 , turbo 350 , 3-5 drop , original paint , front discs 67 Small window , 7 foot bed , tweaked 6.0 LSX 2004R Medium Olive 58 Apache fleet , 235 , offy intake , dual exhaust , 4 on the floor , red/white 69 Long Fleet , Custom , 6.0, 4l60 , AC , Medium Olive |
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01-03-2014, 03:52 PM
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#6 |
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Moderator
 
Join Date: May 2007
Location: Southern Cal
Posts: 20,031
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Re: Best Engine Oil
I've used Mobil One synthetic for years on all my vehicles. My 72 has a flat tappet cam so I use a zddp additive.
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul |
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01-03-2014, 03:56 PM
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#7 |
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Florida Edition
 
Join Date: Oct 2010
Location: Fruitland Park, FL
Posts: 4,028
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Re: Best Engine Oil
VR-1 here also.
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70 GMC Short Stepside "Rose"-An American Beauty: Factory 402/TH400, AM/FM, AC, Tilt, Tach, Buckets, Posi, PS, PB, 3-5 Drop, Complete Resto-Rod 67 C-20 Slant Back Wrecker "Mad Max" 67 C-10 Ratrod "Step-N-Wolf" 71 Serro Scotty Sportsman camper "Scotty" 97 LT1 Z28 "The Hornet" Link to more pics of "Rose" http://67-72chevytrucks.com/vboard/a...p?albumid=1684 Check out my "Cheap Tricks" thread and add to it if you can, lots of good info there. http://67-72chevytrucks.com/vboard/s...d.php?t=489394 |
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01-03-2014, 08:39 PM
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#8 |
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Senior Member
 
Join Date: Dec 2011
Location: South Carolina
Posts: 2,662
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Re: Best Engine Oil
Hemmings(not cheap)http://blog.hemmings.com/index.php/2...-classic-cars/
There are some "high mileage" formulations at AZ, Walmart and Advanced(MaxLife, GTX etc.) |
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01-03-2014, 08:51 PM
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#9 |
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Senior Member
Join Date: Feb 2002
Location: Tucson, AZ USA
Posts: 7,504
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Re: Best Engine Oil
I use straight 30 weight in my 292. Sometimes I run 20W-50 weight -like in the winter - not that we've seen much of that in Tucson, this year.
In the 350 in my '71 GMC Jimmy, I use Valvoline SynPower 20W-50 year round. If I have new old style oil, Service SL, I don't use additive, but if I'm using Service SM, I add a 16 Oz bottle of STP for the ZDDP. If I could afford it I'd use Valvoline Racing 30.
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Every 25 years I like to rebuild that 292, whether it needs it or not. |
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