| [GMCnet] Synthetics are great. But I don't see them in our old dirty engines [message #342910] |
Sun, 28 April 2019 11:52  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma:
|
Senior Member |
|
|
I think nowadays, most manufactures recommend synthetics for the engine that are produced today. Yes. Both the old/new engines have pistons that go up, and down. And a crankshaft that goes round, and round. But after that. It's a different world. Look how small the oil filters are. And how long the oil change cycles are. These new engine run extremely clean inside the crankcase. As to oil contamination.
Our engine are of a different design. That produce much more of these damaging crankcase oil contaminants. You help to negate some of what these contaminants do to you engine. Simply by removing them by more frequent oil/filter changes. Using synthetics simply doesn't change this situation. I put the Howell/GM EFI system on our 403. I've noticed that my oil stays cleaner, longer. But even after adding the EFI. I haven't lengthened my oil change intervals. YES. I'm a NUT on oil changes. But I seem to get some benefits. As an example. I have a 98 Chevy Astro that was used for one of our businesses. Then our daughter used it for some year. Now I'm back to using it. I like it. The interior/seats still look great. Oil/filter changes have always been in the 3000 mile range. The odometer is now at 324,000 miles. Hot oil PSI are at 50. Never add oil between oil changes. That 4.3 Chevy V6 has never been apart for anything. Always had the same old 10W-30 used in it. Planning on a trip to Kansas/Oklahoma from Iowa in the next few weeks with it. As to synthetic oils. Use them. Just don't go over 3000 miles on an oil change. Bob Dunahugh 78 Royale
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
