Do I have to use premium gas in my Cadillac Northstar engine?

Answer On One Hand: If Your Cadillac Was Made Before 2000Before the year 2000, Cadillac Northstar engines were built to run on premium gasoline--91 octane or higher. That being the case, the engines did a... Read More »

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Can you use regular unleaded gas in a Cadillac Northstar engine?

On One Hand: Older Cadillac NorthstarsUnleaded gasoline is the standard in auto fuel. If a vehicle does not run on diesel, it runs on unleaded gasoline. Any gasoline engine, new or old, can use reg... Read More »

How to Repair Bottom End Oil Leak Cadillac Northstar Engine?

Hey there it is time for, Why is My Luxury Car My Cadillac STS leaking OIL! WOW! It's $2800.00 to fix! What did I do wrong? or as I say "OH NO MR. BILL" its "Sluggo". Cadillac from 1994 and 200... Read More »

How to Replace an Oil Pan Gasket on a 2003 Cadillac Seville With a Northstar Engine?

Your powerful Northstar V8 engine uses the same procedure as the SLS model when it comes to replacing the oil pan gasket. And just the same, you should be extra careful not to over tighten the bolt... Read More »

How much horsepower does a 94 northstar engine have?

The 1994 Cadillac 4.6L Northstar V8 engine produced 270 horsepower. A variant of the 4.6L was also built for the Oldsmobile Aurora. This Northstar engine was a 4.0L V8 and produced 250 horsepower.S... Read More »