Quote:
Originally Posted by mistershakez
is it necessary to replace the drain plug gasket?
and will ac delco iridiums be good?
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ok, I have to say I highly disagree with the comment that synthetic oil is not worth it at higher mileage. I bought my car with 93,000 and started using Mobil 1 in it in place of conventional oil. At 151,000 I have not experienced sludge, increased leakage, or any other issues. In fact, I am happily reaping the benefits of greater engine component protection and longer change periods (around 5,000 miles instead of 3,000) which offsets the extra cost. It's a win win situation and I personally say go for it. I know that the penzoil oil change place by me offers a complete oil change (with conventional oil, mind you) , car inspection, and other fluid top-off for only $35. I also live in Michigan so that price should be comparable in grand rapids. Just so you know, your car can run 5w30 in all temperatures and 10w30 in temperatures above zero degrees Fahrenheit.
As for your spark plugs, use the same as original plugs which are AC Delco Type 41-963 (Platinum Plug) Gap: 0.060 inch (1.52 mm). These plugs are meant for our cars and unless your engine has significant upgrades using other plugs will not give you any benefits.
If you want a copy of the owners manual, I have a PDF copy and can e-mail it to you. it gives lots of information on what to use/not use in our cars.