Quote:
Back to the Red Line, I don't care about its cost, as only the longivity of the truck is my concern.
Conventional oils have improved a lot in the last 20 years. These days, any off-the-shelf 5W-30 with an SM/GF-4 rating is made from Group II/II+ base oils that offer excellent performance. You'll find many longtime members here at BOTOG using conventional oils (me included) because they perform so well (even given their reasonably good price).
On a 5k mile/6 month oil change, you will see no difference in terms of wear or engine cleanliness between these conventional Group II based oils and synthetics. Synthetics are generally for extended oil changes or really extreme driving conditions.
Here is a 8794 mile OCI on Castrol GTX 10W-30 … BITOG and the TBN was still 4.4, lots of life left in the oil.
Here are some pictures of a valvetrain with 110k miles using 5W-20 conventional at 7500 miles changes … BITOG That's an oil made with Grp II base oils.
Red Line synthetic at 3k miles oil changes will offer no benefit over conventionals. Just find any brand name 5W-30 with a SM rating you like and run that. Modern oils are so good, your vehicle should fall apart before the engine wears out as long as the oil level is maintained and reasonable oil changes lengths are done.
Back to the Red Line, I don't care about its cost, as only the longivity of the truck is my concern.
Conventional oils have improved a lot in the last 20 years. These days, any off-the-shelf 5W-30 with an SM/GF-4 rating is made from Group II/II+ base oils that offer excellent performance. You'll find many longtime members here at BOTOG using conventional oils (me included) because they perform so well (even given their reasonably good price).
On a 5k mile/6 month oil change, you will see no difference in terms of wear or engine cleanliness between these conventional Group II based oils and synthetics. Synthetics are generally for extended oil changes or really extreme driving conditions.
Here is a 8794 mile OCI on Castrol GTX 10W-30 … BITOG and the TBN was still 4.4, lots of life left in the oil.
Here are some pictures of a valvetrain with 110k miles using 5W-20 conventional at 7500 miles changes … BITOG That's an oil made with Grp II base oils.
Red Line synthetic at 3k miles oil changes will offer no benefit over conventionals. Just find any brand name 5W-30 with a SM rating you like and run that. Modern oils are so good, your vehicle should fall apart before the engine wears out as long as the oil level is maintained and reasonable oil changes lengths are done.