I'd love to see BITOG's opinion on oils to use in a particular application.
I haven't bought a truck yet but I'm pretty set on what I want. It'll be an 80s C30 rollback with a TBI 454 and a 4-speed manual, and then it'll get swapped out for an NV4500 5-speed manual. Gears I'll be shooting for 4.10 or so. The truck will be my daily workhorse, and it'll be towing cars all over town and the state of Ohio. I expect to put about 6000-8000 miles a month or more on the truck and oil changes will probably come twice a month at that rate, longer if a UOA permits. Weather here in the summer is well, Ohio weather anywhere from 60 to 100. Winters, we just had a rough one, down to -40 wind chill, -15 actual. If it makes sense to run different weights summer/winter I'm all for it.
I've been using Mobil 1300 Super 15W40 in the diesel trucks this company runs. The company owners have a decent jobber price for the gallon bottles so those are what end up being run. I'm willing to get something else for a truck of my own, I just need to figure out what.
A 454 is I suppose a pretty loose engine. Would a 10W30 HDEO be appropriate? Would a 5W30 HDEO be too thin?
My goals ultimately are to keep the engine running smoothly and to maximize fuel economy in the truck as it is. I don't want a diesel as I've already seen how expensive the parts that do wear out are and how much of a pain they are to work on. 7.3 IDI and PSD and DT466 while efficient and strong are just too expensive. Maybe less so on the DT466 that truck is a thirsty little piggy. I suppose I'd consider a 6.2 NA diesel. And if the 454 blows up it would get a 6.0 or 8.1 LS engine to replace it.
Anyway, all that aside, what's the verdict on big block gas engine oils when economy is the key deciding factor?
I haven't bought a truck yet but I'm pretty set on what I want. It'll be an 80s C30 rollback with a TBI 454 and a 4-speed manual, and then it'll get swapped out for an NV4500 5-speed manual. Gears I'll be shooting for 4.10 or so. The truck will be my daily workhorse, and it'll be towing cars all over town and the state of Ohio. I expect to put about 6000-8000 miles a month or more on the truck and oil changes will probably come twice a month at that rate, longer if a UOA permits. Weather here in the summer is well, Ohio weather anywhere from 60 to 100. Winters, we just had a rough one, down to -40 wind chill, -15 actual. If it makes sense to run different weights summer/winter I'm all for it.
I've been using Mobil 1300 Super 15W40 in the diesel trucks this company runs. The company owners have a decent jobber price for the gallon bottles so those are what end up being run. I'm willing to get something else for a truck of my own, I just need to figure out what.
A 454 is I suppose a pretty loose engine. Would a 10W30 HDEO be appropriate? Would a 5W30 HDEO be too thin?
My goals ultimately are to keep the engine running smoothly and to maximize fuel economy in the truck as it is. I don't want a diesel as I've already seen how expensive the parts that do wear out are and how much of a pain they are to work on. 7.3 IDI and PSD and DT466 while efficient and strong are just too expensive. Maybe less so on the DT466 that truck is a thirsty little piggy. I suppose I'd consider a 6.2 NA diesel. And if the 454 blows up it would get a 6.0 or 8.1 LS engine to replace it.
Anyway, all that aside, what's the verdict on big block gas engine oils when economy is the key deciding factor?