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BUSY BOLTERS Are you one?  The Shop Area
continues to pull in the most views on the Stovebolt. In August alone there were over 22,000 views in those 13 forums.
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| | | Forums66 Topics126,780 Posts1,039,292 Members48,100 | | Most Online2,175
Jul 21st, 2025 | | | | Joined: Jun 2007 Posts: 100 Shop Shark | | Shop Shark Joined: Jun 2007 Posts: 100 | I have a 62 Series 80 with either a 348 or 409. What engine oil should I put in it. I just got it and want to change the oil before I do much with it. I was thinking 10-30 but wanted a second opinion.
My new 1949 Chevy One Ton Dump Truck. Still have it but parked, needs a new motor.
1953 2 ton parts truck Long Gone
1957 GMC LCF On 75 Cadillac Eldorado Frame
Updated Feb 2021
| | | | | Joined: Jan 2006 Posts: 586 Shop Shark | | Shop Shark Joined: Jan 2006 Posts: 586 | I have used 15-40 Shell Rotella T in old cars,trucks and machinery for years.Check out their web site @ www.rotella.com. There is a great article about oils for old engines in the July/August 2007 issue of Vintage Truck.
Wanted Good Woman:
Must be able to cook , clean , sew , tune engines and polish trucks. Must have old Stovebolt and garage. Please send picture of old Stovebolt and garage.
| | | | | Joined: Apr 2005 Posts: 926 Shop Shark | | Shop Shark Joined: Apr 2005 Posts: 926 | I really like that Rotella 15-40;I used it in my Mack when I changed the oil,and I'll be putting it in my GMCs too. I don't remember the particulars about it,but it's one of a very few oils that has additives that protect the cam lobes etc. from excessive wear. It's like it was designed for our old trucks. BTW-when I was in Reno last time,I found it at AutoZone in gallon jugs,and the price wasn't bad. Here in Elko,I'd check NAPA or Checker for it.
Speed | | | | | Joined: May 2007 Posts: 292 Wrench Fetcher | | Wrench Fetcher Joined: May 2007 Posts: 292 | gas engine V-6,I-6, or V-8 should run 20w-50 in the summer heat and 10W-40 in the cold of winter. . . . i use AMSOIL synthetic's in my old stuff i use straight 60 in the sumer and 20w-50 in the winter synthetic run thin. . . .
in standard oil i run 20w-50 summer 10w-40 winter i haven't had a problem yet. . .
now some say it affect's gas milage not so i got a 95 f-150 with 351efi V-8 it get's 13mpg with 10w-30 mobile one still got 13mpg when i put in 20w-50 amsoil. . . but i gained some oil pressure only difference i noticed. . .
1962 GMC K3000, GMC-379 V6.
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