I know this forum is for gasoline car oil...but I just wanted to post a little finding by switching to HDEO synthetic in a gas passenger car with a problem.
I have a 2004 Chevrolet Aveo with 133K miles on it. It was cheap, runs great and is my little run around gas-saver vehicle. But with 5W-30...this winter (and even warm weather last summer) has been pretty bad for cold starts. I get alot of chatter for the first few seconds until pressure builds up. I assume it's the overhead cams waiting for oil. It always bothered me and I was tempted to try Lucas oil stabilizer to see if that did anything. But I'm not a fan of additives.
So being a diesel owner as well, and having some on hand, I decided to change it with Rotella 5W-40 diesel engine oil this time. Drove it quite a bit yesterday and all seemed well. And to my suprise this morning with a 25 degree cold start...it was totally silent on start up after sitting all night. Usually I'd get some ticking for a couple seconds.
It had good service records on it so I'm not too worried about the HDEO cleaning sludge too much. I don't feel there will be much in there anyway. So that doesn't worry me. But I am happy that it seems to either "hold" on the cams better or else flows faster on cold starts.
I have a 2004 Chevrolet Aveo with 133K miles on it. It was cheap, runs great and is my little run around gas-saver vehicle. But with 5W-30...this winter (and even warm weather last summer) has been pretty bad for cold starts. I get alot of chatter for the first few seconds until pressure builds up. I assume it's the overhead cams waiting for oil. It always bothered me and I was tempted to try Lucas oil stabilizer to see if that did anything. But I'm not a fan of additives.
So being a diesel owner as well, and having some on hand, I decided to change it with Rotella 5W-40 diesel engine oil this time. Drove it quite a bit yesterday and all seemed well. And to my suprise this morning with a 25 degree cold start...it was totally silent on start up after sitting all night. Usually I'd get some ticking for a couple seconds.
It had good service records on it so I'm not too worried about the HDEO cleaning sludge too much. I don't feel there will be much in there anyway. So that doesn't worry me. But I am happy that it seems to either "hold" on the cams better or else flows faster on cold starts.
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