I have a 70 eldo w/ the original 500 and have been using 93 octane, is this the best choice?

Asked by 5657matte Oct 23, 2011 at 09:55 AM about the 1970 Cadillac Eldorado

Question type: General

1 Answer

Palmer answered 12 years ago

It will most likely run best on 93. I have a '75 Eldorado with a 500 and if I put anything lower than that in the tank, the valves start to rattle. If money is really tight, use the mid grade. You'll only get a slight rattle from the valves.

Mark helpful

Your Answer:

Related Questions

Shortcuts

Search Cadillac Eldorado Questions

CarGurus Experts

  • #1
    spiderblu
    Reputation
    950
  • #2
    Gene Arnett
    Reputation
    670
  • #3
    james sparrow
    Reputation
    590
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Cadillac DeVille
3 listings
Used Chevrolet Corvette
29 Great Deals out of 782 listings starting at $15,900
Used Cadillac Fleetwood
1 listing
Used Chevrolet Monte Carlo
7 listings starting at $9,800
Used Ford Mustang
42 Great Deals out of 1,614 listings starting at $8,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.