I just purchased an extensive warranty for my 1998 Chevy Suburban 4x4 with a Turbo Diesel, they seemed to be well financed and have a good rating. I also check with AWA (American Automotive Warranty Service),who had a bumper to bumper available but for almost twice the price for mine with its Turbo Diesel.on mine.

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Mercedes Fleet:
2004 CL600 Designo Espresso SPORT
2004 S600 Designo Espresso SPORT/Lorinser Pkg.
1999 S320
1988 300TE
1972 280SEL 4.5
Diesel Fleet:
2014 GL350 Blutec
1987 300SDL Blk/Blk 4 place seating #18 head
1987 300SDL Smk Slv/Burgangy #17 head
1986 300SDL Blk Pearl/Palomino #14 head w/ 280K
1984 Lincoln Mark VII Fact BMW Turbo Diesel