Best conventional oil for high mileage?
05-13-2005, 02:01 PM
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Best conventional oil for high mileage? There are a few oil freaks on this site. What is the best conventional oil for high mileage cars? I have a 95 Bonneville with 116K that is starting to burn about a quart every 1,500 miles. 
I don't want to run expensive synthetic oil. The car has had nothing but Quaker State 10w30 sine it was new. What do you recommend?
I don't want to run expensive synthetic oil. The car has had nothing but Quaker State 10w30 sine it was new. What do you recommend? 
05-14-2005, 07:49 AM
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3.8L? Patman's idea should work well but since your in OKC and it gets very hot there, why not go with a Gas/Diesel rated 15W-40. I guarantee it will cut down the consumption. My mother's 98 3.8L Monte Carlo started using around 1/2qt per 3K miles once it reached 100K. With the 15W-40 she was lucky to burn 1/2qt every 6K.
No noticeable loss of MPG was noted either and the motor actually seemed to run smoother with the heavier oil.
These can easily be found at Wallmart....... I prefer Chevron Delo400 15W-40 and Mobil Delvac 1300 15W-40. HTH
No noticeable loss of MPG was noted either and the motor actually seemed to run smoother with the heavier oil.
These can easily be found at Wallmart....... I prefer Chevron Delo400 15W-40 and Mobil Delvac 1300 15W-40. HTH
05-14-2005, 11:40 PM
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Thanks for the help. I will switch to a heavier weight oil. I was thinking about this. http://www.quakerstate.com/pages/pro...hermileage.asp
05-15-2005, 04:47 AM
#7
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Ryan's idea is an excellent one, the 15w40 oils will work out very well in the hot weather. The high mileage oils are good too, but their problem is they cost a lot more than regular oils, and it sounds like he wants to do this a more cost effective way. He could find one of the common 15w40 fleet oils for a much better price than the high mileage stuff.
