Around the skiing season, many automotive magazines will remind diesel drivers to buy “winter diesel” or use additives if e.g. driving up to the Alps or similar cold places.
Straight Vegetable Oil (SVO) diesel conversions do. It'll gel at low temperatures, so they blend or switch to a separate tank of regular (or bio) diesel while the engine is cold, wait until it generates enough heat, circulate that heat along the SVO lines and into the tank, then switch over. Then switch back a few minutes before shutdown so the lines are full of regular diesel for the next cold start.
Because they run their engines well within the margins of their design. If you were running at the edge of the envelope you would find that the temperature does matter.
Yeah car analogies suck.
Diesel is blended differently for winter and summer in many countries. See this for instance https://www.crownoil.co.uk/guides/winter-blend-vs-summer-ble...
Around the skiing season, many automotive magazines will remind diesel drivers to buy “winter diesel” or use additives if e.g. driving up to the Alps or similar cold places.
It’s not so black and white :)
Straight Vegetable Oil (SVO) diesel conversions do. It'll gel at low temperatures, so they blend or switch to a separate tank of regular (or bio) diesel while the engine is cold, wait until it generates enough heat, circulate that heat along the SVO lines and into the tank, then switch over. Then switch back a few minutes before shutdown so the lines are full of regular diesel for the next cold start.
True for gas not for diesel. You have to switch to winter- or arctic diesel if the temperature goes below -20c.
Gasoline is also blended differently for summer or winter. It's not as crucial as for diesel, but it does make a significant difference.
In the Corvette community, using a higher octane fuel on hotter days is well known to prevent ping.
I'm surprised the Vette doesn't call for high octane all the time. It's common for high compression engines.
The knock sensor on LT1 and later engines allows one to get away with lower octane fuel for day to day driving.
Because they run their engines well within the margins of their design. If you were running at the edge of the envelope you would find that the temperature does matter.