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![]() Enthusiast ![]() ![]() Joined Dec 26, '05 From So Cal Currently Offline Reputation: 1 (100%) ![]() |
Hi everyone, I'd like to know if it will cause any problems if I switch to 10W-40 motor oil from 10W-30. I drive a '94 GT, and it's about to roll over on 200,000 miles. It has no leaks, but it does burn a little oil at a steady rate, plus the typical blue smoke on startup. Its starting to get pretty hot around where I live, so I'm considering switching to 10W-40 for the summer in an effort to lose less oil.
Can someone tell me if this is safe to do without causing any problems, and if so, is it a good idea? Thanks. |
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Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Mar 11, '06 From Way South Chicago Currently Offline Reputation: 0 (0%) ![]() |
you're better off seeing why you're burning off oil, run a compression test and then a wet compression test to check out the piston rings.
if you come up with 'worn rings' then i'd suggest running a solvent through the oil and then changing it along with the filter. solvent like seafoam or auto-rx could help to unstick your potential stuck rings, which become stuck over time due to missed oil changes, poor quality oil, or just bad luck. \ then check the compression again, if it got better then you have/had stuck rings, some more seafoam or auto-rx will help clear that up. if compression didnt change then you have worn rings or worn cylinders for some reason rather prematurely, tough ****. sorry to hear. -------------------- |
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