93 LT-1 Oil fill issues

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Mar 26, 2025 | 05:12 PM

radar502

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From: Birmingham Al

93 LT-1 Oil fill issues

93 LT-1 Org. oil pan , filter, I installed headers on this 93 the oil fill tube had to come out and it would not go back in so found another one on the forum no problem going back in now when changing oil with new filter, I pour in 5 Qt. showing it needs 1/2 qt to be full ,I have the Org ,dip stick it's in all the way in to the stop on the Tube and it bolted right were the Org one bolted in . I be thinking wrong tube. Any sugestions ..

Mar 26, 2025 | 07:50 PM

Whaleman

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From: LeClaire Iowa

I have found that with my bone stock 96 I also need 5 1/2 qt to be full to the top. I do allow mine to drain and drip for a long time so maybe that is a factor for a couple of ounces. Dan

Mar 26, 2025 | 09:25 PM

radar502

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From: Birmingham Al

Quote:

Originally Posted by Whaleman

I have found that with my bone stock 96 I also need 5 1/2 qt to be full to the top. I do allow mine to drain and drip for a long time so maybe that is a factor for a couple of ounces. Dan

Thanks ,was thinking before I changed the fill tube it showed right on the dip stick then after I changed the tube it was different, maybe not, anyway just corefuced the so call GM manual says 4.5 with filter, the dip stick says I need 1.5 Qt more so cool going with the dip stick. 5.5 Qts oil it is .. Thanks ..

Mar 26, 2025 | 09:30 PM

WVZR-1

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Quote:

Originally Posted by radar502

Difficult to figure out what you're trying to say here BUT 1.5 qts I'd say is serious 'overfill' and asking for serious issues.

If the oil pan is OE you do a fill using factory fill suggestions and note the dip stick.

Mar 27, 2025 | 06:34 AM

Whaleman

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From: LeClaire Iowa

– Oil Type: The LT1 engine requires a high-quality, multi-viscosity engine oil with a viscosity rating of 5W-30. This ensures optimal lubrication in various operating conditions. – Oil Capacity: The engine oil capacity for the LT1 engine is approximately 5.5 quarts (including the oil filter).

This is a cut and paste from google. I know not the best source. Dan

Mar 27, 2025 | 09:33 AM

WVZR-1

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From an appropriate FSM for LT1 VIN 'P' OB-8 or thereabouts any year. 4.0 Q less filter & 4.5 Q w/filter with a note *recheck levels after refill.

Mar 27, 2025 | 12:47 PM

Whaleman

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From: LeClaire Iowa

I know some people claim that halfway up the crosshatch area is "FULL". I take mine to the top of the crosshatch area. I sure hope that is OK. I have been doing it for years. Dan

Mar 28, 2025 | 12:58 PM

gtFOOTw

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Quote:

Originally Posted by Whaleman

I know some people claim that halfway up the crosshatch area is "FULL". I take mine to the top of the crosshatch area. I sure hope that is OK. I have been doing it for years. Dan

I was curious about this too. Owners manual says 4.5 qt capacity with filter change, and that brings it to the halfway point between hash marks. But I always just put 5 qts in because that’s what I’ve done for every small block Chevy.