Well, lets see.
Oil Change with:
Dino Oil - 6.5qts @ ~$2.20/qt = ~$14.30
change every 3,000 miles
Synth. Oil - 6.5qts @ ~4.56/qt = ~$29.67
(5qt container from Wal-Mart = $22.82 ==> $4.56/qt)
change every 6,000 miles
cost of filter = ~$7-$10 --> avg = $8.50
Dino Oil Change over 6,000 miles:
2*($14.30) + 2*($8.50) = ~$45.60
Synthetic Oil Change over 6,000 miles:
$28.60 + $8.50 = ~$38.17
Cost savings over 6,000 mile interval = ~$7.43
If you want to spend more money for a marginally less protection then by all means go ahead. No one has a gun to your head telling you to switch to synthetic. It just plain makes sense to switch. I put 1,000 miles every 2 weeks on my car and that adds up to a lot of oil changes. Every $ saved counts.
I have been running Mobil 1 10w30 since I bought my car with 94,000 miles on it. After 67,xxx miles the engine is still running strong. Now I have no doubt that dino oil would have done the same thing, but when I changed my valve cover gaskets the top of the heads and rocker arms (under the valve covers) were crystal clean. No sludge of any kind. Now show me the inside of a dino oil engine that is that clean...
1994 Intrepid ES - 3.5L w/ 167k miles - SOLD 04/01/04 for $2200 - Man do I miss it!
Last edited by swartlkk; 10-29-2003 at 09:11 AM.