What is making my 1993 Lexus SC300 miss and blow out white smoke?
If it’s missing and blowing white smoke, then somebody’s missed something…you are definitely burning antifreeze. Assuming you’ve checked for blown head gaskets, & checked the heads and block for cracks/damage/warping, it may be an internal water jacket crack somewhere in the block that only opens when under a load. Now if it is bluish white smoke, it is burning oil… worn rings are the primary cause there. Hope this helped.
