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Old 08-28-2003, 11:32 PM
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sfloriII sfloriII is offline
Still pedaling...
Join Date: Aug 2003
Location: Northern VA
Posts: 1,614
Exclamation Will mid-grade gasoline hurt my engine?

[I did read the fine thread a few lines down that's similar to this. I guess I really just need to know if the engine will be okay. It's a '95 E-320 with the 104 engine.]

After working a twelve hour day and then going to the gym, I was too tired to realize that I filled the tank of my E-320 almost all the way up with mid-grade gasoline. (This station had the premium in the middle and the mid-grade on the right, DUH!) I then topped it off with a few gallons of high-test.

I'd say the ratio in the tank now is 75% mid-grade and 25% premium.

Is there any cause for concern? Should I have the tank drained? If not, should I drive in a certain way to prevent any damage?

Thanks for any help!

2014 VW Tiguan SEL 4Motion 43,000 miles.

2016 Hyundai Santa Fe Sport (wife's).

2006 Jetta TDI 135,970 miles. Sold Nov. '13.
1995 E-320 Special Edition. 220,200 miles. Sold Sept. '07.
1987 190-E 16 valve. 153,000 miles. Sold Feb. '06.
1980 300-D 225,000 miles. Donated to the National Kidney Foundation.
1980 240-D manual, 297,500 miles. Totaled by inattentive driver.

Last edited by sfloriII; 08-28-2003 at 11:39 PM.
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