93Rubie

FSM calls for 4.5 qts. this puts it about half way up the hashed area. I auto-x, is it a good idea to overfill to 5 qts? Granted I'm not cornering in any one direction for any length of time, but lots of sloshing.

I know for HPDE it is recommend to run 5 qts. which makes sense.

If so, will running 5qts on the street have any detrimental effects? I have no idea how close the oil level is to the crank and how much clearance I have while it is running.

Thanks

jaa1992

I run 5 to 6 qts in mine for road racing.
Have burned one engine up so I'm going to a road race pan that has better baffles and holds more oil.

Sidney004

Have not seen any ill effects from running mine at 1/2 quart over the hash line over the past ten years. By the way, my LT1 has over 120 track hours(I have lost track of the actual number but I am not far off) on the original engine(heads have never been off), stock pan, Redline 20W-50 and I run on slicks. Knock on wood but I think the LT1 is a pretty tough engine.

Bill32

If the 93 FSM says 4.5, it must be a misprint.

The 92 FSM says 5.

The FSM's also note to recheck levels, you should be at the full (hot) mark. Especially for HPDE. And a half qt. over that isn't a bad idea.

No, running slightly overfull won't hurt anything.

93Rubie

Thanks, you all confirmed what was thinking. I rechecked my FSM says 4.5 w/filter. I'm going to put in my 5 qt. Mobil 1 5w-30 and call it a day.

Sounds for what I do on street tires, I should have no problems. I also run BG products MOA, good stuff, and it never hurts to have a little extra protection in the oil.

Sidney004, I agree with you the LT1 is tough engine. All SBC's are but as yours attests to, one tough engine. I've seen lots of them running around with 200K+ still running strong and all stock internally.

Just out of curiosity, does your Oil Temps. ever get high? Being track driven and with no oil cooler unless you added one.

Sidney004

Normally between 280-295. The hottest I have ever seen is 308. No oil cooler on mine.

93Rubie

Wow, that is hot. Good thing it is synthetic.