Hi. I bought an abused and forgotten about 300 Hurst and did a low budget "restoration". I thought engine would need a rebuild soon, so I usually bought whatever oil and filter was on sale..... but 20 yrs later its still going, starts great and runs pretty smooth. I put about 500-750 miles a year on it, so I change the oil every 2 yrs. Oil is always dark and smells like carbon, so rings are probably shot, (compression test wasn't the best). I don't notice it burning any oil, but a spark plug fouls out (bad valve) and needs cleaning about every 5yrs.
Anyhow, my question is:
I'm still too afraid to try sub $5 filters. If anyone used these, please advise any issues I could have and remember I change oil and filter every 1500 miles.
I noticed Wix 51068's are low cost at $8.75. Anyone use these?
Am I correct to think even the cheapest oil sold today (rated at GF5) is way more clean and refined then what was used in 1970? Or think any brand oil is good for 1500 miles? Only issue is these cheap new oil brands don't include amount of magnesium and other ingredients older engines might need....but my Hurst doesn't seems to mind...yet.
Sometimes I get lucky and find Synthetic Blend below $3 qt...but we all know "Blend" could be only 1% Synthetic.
Thanks.
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